Question

What is the value of the larger zero of the function defined by x²+4x-252?

A. 9
B. 12
C. 14
D. 21

Answer 1

C

Explanation:

The equation will become

`{x}^(2) + 4x - 252 = 0`

If I substitute 14 into the position of x

`{14}^(2) + 4(14) - 252 = 0`

`{14}^(2) + 4(14) = 252 \\ 196 + 56 = 252`

I get 252 exactly