Solve 2x2 + 8x - 12 = 0 by completing the square. What are the solutions? {2 -10 , 2 -10 } {-2 + 6, -2 -6 } {-2 +10 , -2 -10 }

Given the following statements, which is the best

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b

Someone answer this asap for the first five terms of a sequence are shown. 5, 11, 23, 47, 95, . . which recursive function defines the nth term in the sequence for n > 1? a. f(n) = f(n - 1) + 6 b) f(n) = f(n - 1) + 48 c) f(n) = 3 • f(n - 1) + 1 d) f(n) = 3 • f(n - 1) - 4