a square + 2 a b + b square - 9 c square
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Answered by
1
a² + 2ab + b² - 9c²
(a + b)² - (3c)²
(a + b + 3c)(a + b - 3c)
Answered by
0
Answer:
a² +2ab+b²-9c²
(a+b)²- (3c)²
(a+b-3c²) (a+b-3c²
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