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katyarychikhina
@katyarychikhina
July 2022
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Решите #1,2
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ilia9999999999
№1
1)
-2x(1-x)+(2x-3)(x-1)=2x+2x^2+2x^2-2x-3x+3=-7x+4x^2+3
2 votes
Thanks 1
ilia9999999999
Вот с помощью его делай остальные
katyarychikhina
Реши #2(б), пожалуйста
ilia9999999999
а) а(5+4+4) б) (3х-3у)^2
ilia9999999999
Стой б) x-y-2x^2+2y^2=2(y^2-x^2)+x-y=-2(x-y)(x+y)+(x-y)=(x-y)(x+y-2)
katyarychikhina
Спасибо большое!
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Answers & Comments
1)-2x(1-x)+(2x-3)(x-1)=2x+2x^2+2x^2-2x-3x+3=-7x+4x^2+3