9. Calculate the real values of x and 3; such that (x + y)3is bigger than B 10. Find real values of the number \"a" from which ai is a solution of the polynomial equation x4 2x3 + :r'xz 42 + 1n = I}. Then nd the roots of this equation. 1 1. Calculate the values of \"m\" such that the roots: x1 and x; of a:2 me + m = U satisfy the condition 3:? + x3 = x12 + x. 12. Find the 4 4"\" roots of 4 + li 13. Find the 2 square roots of 3 -Si 14. Find the 9 9'11 roots of12-13i