Factor this polynomial completely. x^2-81 Question Factor this polynomial completely. x^2-81 in progress 0 Math Eliza 3 weeks 2021-09-26T20:31:50+00:00 2021-09-26T20:31:50+00:00 2 Answers 0

## Answers ( )

The answer to your question is (x+9)(x-9)Step-by-step explanation:Rewrite 81 as 92

x2−92

Since both terms are perfect squares, factor using the difference of squares formula, a2−b2=(a+b)(a−b)

where a=x and b=9

(x+9)(x−9)

Hope this helped you out:)

Answer:a=x and b=9

(x+9)(x−9)

Explanation:Since both terms are perfect squares, factor using the difference of squares formula, a2−b2=(a+b)(a−b)