homework help please!!

12. What is is equal to ? 13. What is 63 equal to ? 14. Find the discriminant of the following quadratic functions. a. f(x) = x2 + 10x +11 b) g (x) = -2x2- x-60 c) h(x) = 3x2 + 14x + 20 15. Find the roots of x2 - 10x + 29 = 0. What does the discriminant tell you about the solution? 16. Find the roots of 3x2 - x + 9 = 0. What does the discriminant tell you about th solution? 17. A quadratic function has the complex roots of (1+3i) and (1-3i). What is the quadratic function in standard form? 18. If f (x) = (x+2+2i)(x + x - 21), what is the quadratic function in standard form