Matéria de Matemática: Polinômios

Oi gente! depois eu passo aqui ensinando sobre os polinômios, ooks??

1) 3z³-5x²-5+2x³+5+3x²=
2) 5x³+3x²+x-2-5x³-2x²-3x+=
3) (2x³+3x²+x-2)+(5x³-2x²+4x+5)=
4) (2x²y+3x²y²)+(4xy²-x²y)-(x²y+3xy²)+(x²y²-5xy²)=
5) (x²+2xy+y²)+(x²-2xy+y²)=
6) (x²+2xy+y²)-(x²+2xy+y²)=
7) (x²-2xy+y²)-(x²+2xy+y²)=
8) (2xy²(3x+2y)=
9) (3x+2y)2xy²=
10) 5(2x-3y)=

Respostas:
1) 5x³-2x²
2) x²-2x+3
3) 7x³+x²+5x+3
4) 4x²y²-4xy²
5) 2x²+2y²
6) 0
7) -4xy
8) 6x²y²+4xy³
9) 6x²y²+4xy³
10) 10x-15y

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BJS caramelados,

Patty