find the product (9x-3y) (9x+3y)
Answers
Answered by
1
(9x-3y) (9x+3y)
= (9x)²-(3y)²
= 81x²-9y²
Answered by
0
Answer:
81x^2-9y^2
X=√9y^2/81
X=y/3
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