value of (a+b)2 - (a-b)2
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Answered by
0
Answer:
factorise by using formula
Answered by
0
Answer:
=4ab
Step-by-step explanation:
a²-b²=(a+b)(a-b)
so,
(a+b)² - (a-b)2²=(a+b+a-b)(a+b-(a-b))
=(2a)(2b)
=4ab
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