solve the question no.31
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2. 2
by factorizing {a+b} -(a-b) 4ab
when you substitute it and then your answer is 30xy
by factorizing {a+b} -(a-b) 4ab
when you substitute it and then your answer is 30xy
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(3x + 5y)^2 - (3x - 5y)^2
(a)^2 - (b)^2 = (a + b) (a - b)
= ( 3x + 5y + 3x - 5y ) ( 3x + 5y - 3x + 5y )Ans
(a)^2 - (b)^2 = (a + b) (a - b)
= ( 3x + 5y + 3x - 5y ) ( 3x + 5y - 3x + 5y )Ans
praween3:
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