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Multiply and simplify (x-3y) (x + 3y)

Multiply and simplify (x-3y) (x + 3y)
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5 votes
Multiply and simplify
(x-3y) (x + 3y)

User Yoriz
by
8.5k points

2 Answers

3 votes

(x-3y)(x+3y) \\ =x^2+3xy-3xy-9y^2 \\ =x^2-9y^2
User Aahsanali
by
8.6k points
6 votes

(x-3y) (x + 3y)=x^2-9y^2\\\\ (a-b)(a+b)=a^2-b^2
User DarkMath
by
8.0k points
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