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kulackovaa
@kulackovaa
September 2021
1
12
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Представте в виде многочелена :
а)5x^2-(2x-3)
б)-0,25y(8-4y)
а)(a-2)(a+7)
б)(3b-1)(3b+2)
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sasha204799955
а)5x^2-(2x-3) - 5x
²-2x+3
б)-0,25y(8-4y) - 0.25y*8-0.25y*(-4y) ответ: -2y+y
²
а)(a-2)(a+7) - a
²+7a-2a-14 ответ: a²+5a-14
б)(3b-1)(3b+2) - 9b
²+6b-3b-2 ответ: 9b²+3b-2
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Answers & Comments
б)-0,25y(8-4y) - 0.25y*8-0.25y*(-4y) ответ: -2y+y²
а)(a-2)(a+7) - a²+7a-2a-14 ответ: a²+5a-14
б)(3b-1)(3b+2) - 9b²+6b-3b-2 ответ: 9b²+3b-2