97,150 views
44 votes
44 votes
Factor completely.
100-9x²

someone help please

User Kaese
by
3.3k points

2 Answers

23 votes
23 votes

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Considering both terms are perfect squares, factor using the difference of squares formula:


a^2-b^2=(a+b)(a-b)

In this situation, a = 10 and b = 3x. With this, now plug in your data into the formula.

(10 + 3x) (10 - 3x)

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Hope this helps! If so, lmk! Thanks and good luck!

User Krakkos
by
2.8k points
13 votes
13 votes

Answer:


(10+3x)(10-3x)

Explanation:


100-9x^2\\√(100) =10\\√(9) =3\\3*-3=-9\\√(x^2) = x \\(10-3x)(10+3x)

User Karl
by
3.0k points