упростите выражения пожалуйста!!
5(a+2)+(a-2)=?
2x(x+1)-4x(2-x)=?
x(x²+x)-(x²+x+1)=?
2y²(6y-1)+3y(y-4y²)=?
5(a+2)+(a-2)=?
2x(x+1)-4x(2-x)=?
x(x²+x)-(x²+x+1)=?
2y²(6y-1)+3y(y-4y²)=?
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Answers & Comments
2x²+2x-8x+4x²=6x²-6x
x³+x²-x²-x-1=x³-х-1
12y³-2y²+3y²-12y³=y²
2) 2х²+2х-8х+4х²=6х²-6х
3) х³+х²-х²-х-1+=х³-х-1
4) 12у³-2у+3у²-12у³=3у²-2у