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valeriavas
@valeriavas
August 2022
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упростить
4a(a-2)-(a-4)^2
2(b+1)^2-4b
срочно, заранее спасибо)
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m11m
4a(a-2)-(a-4)²=4a²-8a-a²+8a-16=3a²-16
2(b+1)²-4b=2(b²+2b+1)-4b=2b²+4b+2-4b=2b²+2
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Answers & Comments
2(b+1)²-4b=2(b²+2b+1)-4b=2b²+4b+2-4b=2b²+2