a)(3x+4y+2z)-(-2x+4y-5z)-(x+3y-2z)
b)(x-2y-3z)-(3x+2y+z)+(4x-3y-3z)
c)-(x do potęgi 2- 3x+2) + (4-3x+2x do kwadratu)- (7+4x-3x do kwadratu)
d)-(3-2x+4x do kwadratu - 2x do sześcianu)+ (-x do sześcianu- 2x do potęgi drugiej - 2x - 6)
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a)
b)
c)
d)
(3x+4y+2z)-(-2x+4y-5z)-(x+3y-2z)=3x+4y+2z+2x-4y+5z-x-3y+2z=4x-3y+9y
(x-2y-3z)-(3x+2y+z)+(4x-3y-3z)=x-2y-3z-3x-2y-z+4x-3y-3z=2x-7y-8z
-(x²-3x+2)+(4-3x+2x²)-(7+4x-3x²)=-x²+3x-2+4-3x+2x²-7-4x+3x²=4x²-4x-5
-(3-2x+4x²-2x³)+(-x³-2x²-2x-6)=-3+2x-4x²+2x³-x³-2x²-2x-6=x³-6x²-9