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Factor this expression completely 9x^2- y^2

2 Answers

4 votes
(3x-y)(3x+y) is the answer to the question
User Maletor
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5 votes

Answer:

(3x - y)(3x + y)

Explanation:

Both 9x^2 and y^2 are perfects squares.

The rule for factoring perfect squares is a^2 - b^2 = (a - b)(a + b).

Here, factoring (3x)^2 - y^2 results in (3x - y)(3x + y).

User Mikera
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5.4k points