(a+b ) 2 = a2 + 2ab+ b2
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Answer:
answer :a2+2ab+b2
Step-by-step explanation:
(a)2 square opens a and becomes a2 ,2×a×b=2ab because there is no sign between 2ab so we have to add multiplication sign and last but not least (b)2 the 2 i.e square opens b so the answer is b2 i hove that helps u
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