If you have a fraction for the index of a radical, get rid of that too. For instance the (2/3) root of 4 = sqrt(4)^3 = 2^3 = 8. This only applies to constant, rational exponents. If you have terms like 2^x, leave them alone, even if the problem context implies that x might be fractional or negative. pressions that result.
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One-sentence summary -- Find any fractional exponent and convert it to the radical equivalent, namely x^(a/b) = bth root of x^a Convert negative exponents to their equivalent fraction, namely x^-y = 1/x^y and simplify any rational expressions that result.

If you want to gain weight, go here for a discussion of how to do so in a healthy way. Doctors generally agree that other factors are more responsible for weight gain or weight loss than your metabolism. These factors include: How many calories you consume daily. How much and how intensely you exercise. Your genetics and family history. The medications you may be taking. Other unhealthy habits such as not getting enough sleep. Slowing your metabolism can involve some pretty unpleasant things: skipping meals, eating few calories, etc. Proper, medically-sound weight gain often involves: Increasing caloric intake. Eating more calories than your body burns in a day. Addressing any underlying medical issue that might be causing you to lose weight, e.g. thyroid issues, diabetes, anorexia nervosa. If you want to decrease your metabolic rate, start skipping meals. This is not a healthy way to lower your metabolism, but it's effective. Skipping meals causes the body to think that it might have to start preparing for famine, causing it to lower its metabolism in an effort to save energy. When you give your body fewer calories, it compensates by lowering your overall metabolic rate. And it makes sense: with fewer overall calories to work with, your body can't expect to use the same amount of energy that it can when it's getting more calories. Note: When you give your body fewer calories, it might start burning muscles or body tissue in order to compensate for the lack of calories it's getting. If you are already skinny, this isn't a good method for weight gain. Every time you sleep, your metabolic rate dips and then remains suppressed for a period after you awaken. Studies show that sugars and fruit are digested and absorbed more rapidly than complex carbohydrates, such as bread, producing a rollercoaster of blood sugar with high peaks and low troughs. It has also been shown that the total carbohydrate oxidation over a six-hour period is lower with complex carbohydrates (bread and maize starch) than with sugars. Sucrose (table sugar) also contains fructose, while complex carbohydrates are made up exclusively of glucose units. Fructose consumption results in greater thermogenesis (calorie burning) than glucose consumption. Choose high-fiber foods such as grains (especially whole grains) and vegetables. High-fiber meals have been shown to reduce thermogenesis (calorie burning) for six hours after eating. Of all the foods you can eat, nuts and seeds, which contain almost no moisture and provide healthful unsaturated fats, have the highest caloric density, packing in the most calories per ounce. Polyunsaturated fats, such as those in nuts, have been shown to be oxidized more slowly than monounsaturated fats. Nuts and seeds are also rich in the amino acid arginine. Arginine is used by the body to make nitric oxide, a gas that has been shown to reduce the metabolic rate.
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One-sentence summary -- Understand that "slow metabolisms" aren't necessarily responsible for weight gain. Understand that slowing your metabolism might not be the healthiest way to gain weight. Skip meals. Eat fewer calories. Take naps. Replace simple carbohydrates (sugar) with complex carbohydrates (starch and fiber) when possible. Include nuts and seeds in the diet.

Just in case your teacher sees you and asks to bring the note up, have an extra note handy that is about something relating to class but not cheating. For example: "Is the project due on Thursday or Friday?" or "Did you understand the last chapter?" Obviously, if you've already been called up you should have both notes handy and the hiding would be obvious.
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One-sentence summary -- Keep a spare note handy. Make sure the note looks similar to the original that the teacher has already seen or they'll know you switched it. Toss the note in a pocket, purse or back of a book with the fake note pretending that it was impulsive so no one will know.

Generally, you are eligible for Singaporean citizenship after 2 years as a permanent resident. You must be at least 21 years of age. You also must be gainfully employed at the time of your application, unless you are applying as the spouse of a Singapore citizen. To increase the chances that your application is accepted, you may want to wait more than 2 years before you apply. This gives you a chance to better develop connections within your community. The ICA makes the citizenship application available for download on its website. You must also provide supporting documentation and a recent passport-sized photograph of yourself. A list of the supporting documents you need can be found at https://www.ica.gov.sg/PR/citizenship/PR_citizenship_becomeasc#documents. You can submit your documents online, or you can take them to the ICA office in person. The ICA does not accept citizenship applications through the mail. If you take them to the ICA office in person, schedule an appointment before you go. If you go in person, take your originals of each supporting document as well as one copy of each to attach to the application itself. You can use ICA's eService system to submit an application online. However, you must immediately schedule an appointment and bring the originals of all the required documents. You must have an interview to verify your submitted documents and the information you provided. The ICA officer will ask you questions, and have you issue a declaration as to the truth of the information you submitted. If you submitted your application online, make sure you schedule this interview as soon as possible. When your application is processed, ICA will let you know whether you have been permitted to become a citizen of Singapore. If your application was successful, this letter will include details on what you need to do next. Singapore citizenship applications may take anywhere from 6 to 12 months to process. You may be required to complete the "Singapore Citizenship Journey," an education and cultural program for new citizens. In this case your letter will say that your citizenship is "Approved In-Principle." You can formalize your citizenship after you've completed the program. Singapore does not recognize dual citizenship. Accordingly, if you were already a citizen of another country, you must formally renounce that citizenship at the embassy of your country of origin and surrender your passport. The embassy will issue letters confirming you have renounced your citizenship and surrendered your passport. You will need these letters to register as a citizen of Singapore. You will have an appointment with the ICA to register. The date of your appointment will be on your outcome letter. If you can't attend at the date and time assigned, contact the ICA as soon as possible to change it. Bring along the originals of your renunciation and passport letters, plus a photocopy of each. You will be expected to pay registration and identification fees as well. The amount of these fees will be listed on your outcome letter. When you register your citizenship, the ICA officer will let you know when the next citizenship ceremony is being held. This ceremony is mandatory. You will be presented with your citizenship certificate and identity card during the ceremony. If you need proof of your citizenship before the ceremony takes place, you can get a letter of confirmation from the ICA.
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One-sentence summary --
Confirm your eligibility. Complete your application for citizenship. Submit your application to the ICA. Meet with an ICA officer. Receive your outcome letter. Renounce your foreign citizenship. Register your citizenship. Attend your citizenship ceremony.