factories : (a+b)^2 - 4a
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Answered by
1
(a+b)²-4a
=(a)²+(b)²+2ab-4a
=a²+b²+2ab-4a
Answered by
2
(a+b)²-4ab
= a²+b²+2ab-4ab
= a²+b²-2ab
= (a-b) ²
I hope this answer is correct.
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