Question

Factor each polynomial

Answer 1

(x + 7)(x² - 8)

Explanation:

x³ + 7x² - 8x - 56 =

let's put the total multiplier x² out of brackets

x²(x + 7) - 8x - 56 =

let's put the total multiplier -8 out of brackets

x²(x + 7) - 8(x + 7) =

let's put the total multiplier (x + 7) out of brackets

(x + 7)(x² - 8)