Question

Question in the attached Algebra 2

which shows one way to determine the factors of the expression by GROUPING

x^3 - 9x^2 + 5x - 45

Answer 1

A

Explanation:

Given

x³ - 9x² + 5x - 45

Factor the first/second and third/fourth terms, that is

= x²(x - 9) + 5(x - 9) ← factor out (x - 9) from each term

= (x - 9)(x² + 5) = (x² + 5)(x - 9) → A