Question

What are the zeros of f(x) = x2 + x - 30?A. X= -2 and x= 15B. X= -6 and x = 5C. x= -15 and x = 2D. X = -5 and x = 6

Answer 1

B. X= -6 and x = 5

Step-by-step explanation:

Given the function f(x) = x^2 + x - 30, the zeros occurs at f(x) = 0

x^2 + x - 30 = 0

Factorize;

x^2+6x-5x-30 = 0

x(x+6)-5(x+6) = 0

(x+6)(x-5) = 0

x+6 = 0 and x-5 = 0

x = -6 and 5

Hence the zeros of the equation is at x = -6 and x = 5