(7a + 5b)^2 - (7a-5b)^2
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the above answer is correct , but i will give you more better answer
Step-by-step explanation:
(7a + 5b)+(7a-5b) * (7a + 5b)- (7a-5b)
this is simplified and the rest sum you do at your own because practice makes man/women perfect
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