(a-b)²+4×a×b factorise this problem
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Answer:
the answer is (a+b)²
Step-by-step explanation:
when you will open up (a-b)² you will get a² + b² - 2ab and then you will add 4ab into it.
so you will get a² + b² + 2ab which is equal to (a+b)²
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