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W(x) = 2x do potęgi 5+2x²-x-1, P(x)=3xdo potęgi 4-2x²+x+1.
W(x)+P(x)= (2x5+2x2-x-1)+(3x4-2x2+x+1)= 2x5+2x2-x-1+3x4-2x2+x+1= 2x5+3x4
W(x)-P(x)=(2x5+2x2-x-1)-(3x4-2x2+x+1)= 2x5+2x2-x-1-3x4+2x2-x-1=2x5-3x4+4x2-2x-2
W(x)*P(x)=(2x5+2x2-x-1)*(3x4-2x2+x+1)= 6x9-4x7+2x6+2x5+6x6-4x4+2x3+2x2-3x5+2x3-x2-x-3x4+2x2-x-1=6x9-4x7+8x6-x5-7x4+4x3+3x2-2x-1