Question

Factor x3 ‒ 11x2 ‒ 7x + 77 by grouping. What is the resulting expression?

a

(x2 ‒ 7)(x ‒ 11)


b

(x2 ‒ 7)(x + 11)


c

(x2 ‒ 11)(x + 7)


d

(x2 ‒ 11)(x ‒ 7)

Answer 1

A.
`(x^(2)-7)\cdot (x-11)`

Explanation:

The third order polynomial is factored herein:

`x^(2)\cdot (x-11) - 7\cdot (x-11)`

`(x^(2)-7)\cdot (x-11)`

Which represents answer A.