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marinaKurkina
@marinaKurkina
February 2022
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Преобразуйте в многочлен: (a-x)²+(a+x)²
2(x+6)²-(20x+70)
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Lesben
1)(a-x)²+(a+x)²=a²-2ax+x²+a²+2ax+x²=2a²+2x²
2)2(x+6)²-(20x+70)=2x²+24x+72-20x-70=2x²+4x+2
4 votes
Thanks 4
prostotom
(а-х)²+(а+х)²=а²-2ах+х²+а²+2ах+х²=2а²+2х². 2(х+6)²-(20х+70)=2(х²+12х+36)-20х-70=2х²+24х+72-20х-70=2х²+4х+2.
6 votes
Thanks 3
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Answers & Comments
2)2(x+6)²-(20x+70)=2x²+24x+72-20x-70=2x²+4x+2