simplify (ab-c)^2 + 2ab
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Step-by-step explanation:
The given expression is
(ab - c)2 + 2abc
= (ab)2-2(ab)(c) + (c)2 + 2abc
= a2b2-2abc + c2 + 2abc
= a2b2 + c2
Therefore, (ab - c)2 + 2abc = a2b2 + c2
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