Simplify : (a+b)(2a-3b+c) - (2a-3b-c)(a-b)
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Answer:
the answer is -6ab+2b
Step-by-step explanation:
(a+b)(2a-3b+c)-(2a-3b-c)
=2a²-3ab+ac+2ab-3b²+bc-2a²-3ab-ac-2ab+3b²+bc
=-6ab+2b
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