Question

Question 5 Which of the following shows one of the factors of the expression below? x² + 2x - 8 O a Ob (x + 2) (x - 2) (x+8) (x - 8) Od

Answer 1

Given data:

The given expression is x² + 2x - 8.

The factors of the given expression is,

`\begin{gathered} x^2+2x-8=x^2+4x-2x-8 \\ =x(x+4)-2(x+4) \\ =(x-2)(x+4)_{} \end{gathered}`

Thus, one of the factor is (x-2), so option (b) is correct.