Question

Factories each of the following −2x2 −20x −18

Answer 1

2(x + 9)(x + 1)

Explanation:

• First, take out a GCF if possible. Each coefficient is dividable by 2, so 2 is the GCF.

-2(x^2 + 10x + 9)

→ The main quadratic equation is equal to ax^2 + bx + c.

• Then, use a factoring pattern to factor the expression in parentheses. The factors of C that add up to equal B are the two factors.

2(x + 9)(x + 1)

The expression cannot be factored any further.