Question: how to solve quadratic equation questions?
Answer: Problem 1. Solve for x: x2-15x+56 = 0. A. x = 14 or x = 4. B. x = 8 or x = 7. C. x = 28 or x = 2. ...  Problem 2. Find x if 2x2+7x+4 = 0. A. - 7 ± √17 / 4. B. - 7 ± √7 / 4. C. ...  Problem 3. For what value of k does the equation x2-12x+k = 0 have real and equal roots? A. B. C. D. Answer 3.