Problem: Write an article based on this summary: Write down the problem. Subtract like terms. State your final answer.

Answer: Let's say you're working with the following problem: 3x2 - 5x + 2y - z - (2x2 + 2x + y). Write the first set of terms above the second. When you're working with variables, you can only add or subtract terms that have the same variable and which are written to the same degree. This means that you can subtract 4x2 from 7x2, for example, but not 4x from 4y. This means that you can break the problem down like this: 3x2 - 2x2 = x2 -5x - 2x = -7x 2y - y = y -z - 0 = -z Now that you've subtracted all of the like terms you can subtract, all you can do is state your final answer, which will contain each of the terms that you subtracted. Here's the final answer: 3x2 - 5x + 2y - z - (2x2 + 2x + y) = x2 - 7x + y - z

Problem: Write an article based on this summary: Enjoy some facts about betta fish:

Answer: Betta fish are members of the Anabantoid family (gouramis are also in this family), also called labyrinthian fish. They have a back-up breathing system that allows them to breathe surface air; however, they still require a filtration system in their tanks. Female betta fish are typically smaller than male betta fish. They usually lack the long finnage that males possess. However, they can still be equally as beautiful in their own wayand feisty! Don't keep them together though, as females still tend to be as aggressive as the males. Bubble nests (foamy bubbles on the surface of the water) mean that they are getting ready to spawn. It does not automatically mean that they are happy or healthy. If a male likes a female, he flares his gills, twists his body, and spreads his fins. If a female likes a male, she wriggles back and front. "Betta" is actually a genus of fish. The typical betta found at pet stores is the Betta splendens species. There are actually many more species mainly found in the wild, and they can look like a totally different type of fish! Don't be afraid to choose a female betta fish! Although you may not be planning to breed them, a female is always less expensive and less aggressive. Therefore, you can always buy a female if you are inexperienced at keeping bettas, it is better to choose a female.

Problem: Write an article based on this summary: Check to make sure your horse isn't in pain. Don't punish your horse for misbehaving. Exercise your horse several times a week. Keep other horses on the trail to a minimum during rides. Avoid unfamiliar locations and situations if your horse is hard to control. Don't ride in cold, windy weather if you can avoid it.

Answer: Sometimes, what seems like disobedience in a horse is actually a reaction to pain. A poorly-fitting bit or a sharp edge under the saddle can cause extreme discomfort to a horse, which may lead it to rear or jig when you're riding it. Examine the tack thoroughly before every ride, and check your horse's teeth and hooves to make sure it's in good health. Also, make sure to always properly untack your horse and groom it after you ride it to help keep it healthy and comfortable. Sometimes, horses can get a disrespectful attitude toward their rider. Sometimes this is just because the horse is testing the authority of the pack leader, but it can also sometimes be due to the horse being treated poorly. To help avoid this, never hit or punish your horse when it acts up. Instead, give it positive feedback when it does well, so it will know what you expect it to do. If your temper is flaring and you're worried you might hit or punish your horse, put the horse back in its stall until you've both calmed down. Then, try again. Making your horse feel secure and working with it frequently are both important toward getting the animal to respect you. Horses need an outlet for their physical energy, and they benefit from constant, ongoing training. Several times a week, lunge your horse for at least 10-15 minutes, as this will tire it out and establish that you're in control. Doing groundwork before you ride can put the horse in an obedient mindset, making it easier to control. Focus on changing speeds and stopping during groundwork training. This will help you have better control over the horse's gait when you're riding. If you're going for a group ride, the more horses there are, the more excited your horse will be. This excitement can get channeled to anxiety during the ride. If you've struggled to control your horse during another ride, stick to a group of 2-3 horses on the trail. The horse may feel like it needs to get ahead of the group, or it may struggle to keep up. Either of those situations can cause the horse to become excited and difficult to control. When you're riding with a group, it's best to know your horse's preferred place within the herd. It might like to be a leader, or it may prefer to bring up the rear. If your horse commonly misbehaves during group rides, try changing up its position in the lineup. Riding in pairs or in a group of 3 will ensure there's someone around to help you if you do lose control of the horse. Until you feel confident that you're able to control your horse, try to limit how often you expose it to unfamiliar situations or areas. Since horses are naturally a prey animal, they tend to get nervous if they don't know where they are or what's about to happen. As you gain more control over the horse, gradually introduce it to new places and things, so it won't be as likely to be spooked when you're out on a trail. When you do go on a new trail or in a new environment, speak softly and encourage your horse so it will stay calm. Additionally, pet it along its neck and hindquarters to help soothe it so it stays relaxed. Horses rely on their sense of smell to tell them when predators are near, and cold, windy weather can disorient them. Since horses tend to be more antsy and rambunctious in this type of weather, it's best to avoid riding, especially if your horse has a history of being hard to control. The best time for a ride is a mild, sunny day.

Problem: Write an article based on this summary: Practice power posing. Take up space. Stand up straight. Aim your torso and toes at the person you are talking to. Be still.

Answer:
Standing tall with your arms and legs spread out wide will help you to feel more confident. This type of dominant pose also reduces cortisol and increases testosterone, which will add to your confidence. Take a moment to duck into bathroom stall or empty room and power pose for a minute before you need to walk confidently. Occupying more space will make you seem larger and more confident to others. Use your arms and legs to claim more of the territory around you. When you are standing, place your hands on your hips and stand with your legs about shoulder width apart. When you are sitting, lean back and stretch your legs out in front of you and rest one or both arms on the backs of the seats next to you. If there is a table or desk in front of you, you can place your arms on the table and spread them out and away from your body. A hunched appearance projects a lack of confidence. Instead, walk straight and tall to seem confident. As you walk, keep your shoulders back and lift up your chin slightly. Test your posture by holding a pencil in each hand and making a fist. Let your arms fall loosely at your sides. If the pencils face inward (towards you), then you are hunching your shoulders. Shift your shoulders back until the pencils face forward to see how your ideal posture should be while you walk. Directing your body towards the person you are talking to demonstrates your respect for them as well as interest in what they have to say, but it also contributes to an appearance of confidence. People who lack confidence may find it harder to face other people directly during a conversation. Fidgeting makes you look nervous and uncomfortable, which makes you seem like you lack confidence. Train yourself to keep still when you are standing or sitting. If you are standing, place your hands on your hips or hold something in one or both of your hands. You can hold a mug, clipboard or notepad, a pen, or something else that is appropriate for your situation. Just make sure that you don't fidget with the object. If you are seated, firmly plant your hands on the arms of a chair or on top of a table. Just remind yourself not to tap your fingers on the table.