Wiedząc, że P(x) = 2x^2 - 3x + 5 i Q(x) = x^3 - 5x^2 + 2x - 5 oblicz P + Q i P - Q
P + Q= 2x^2 - 3x + 5 + x^3 - 5x^2 + 2x - 5 = x^3-3x^2-x
P - Q= 2x^2 - 3x + 5 -x^3 + 5x^2 - 2x + 5=-x^3+7x^2-5x+10
P(x)=2x²-3x+5
Q)x)=x³-5x²+2x-5
P+Q=2x²-3x+5+x³-5x²+2x-5=x³-3x²-x
P-Q=2x²-3x+5-(x³-5x²+2x-5)=2x²-3x+5-x³+5x²-2x+5=-x³+7x²-5x+10
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P + Q= 2x^2 - 3x + 5 + x^3 - 5x^2 + 2x - 5 = x^3-3x^2-x
P - Q= 2x^2 - 3x + 5 -x^3 + 5x^2 - 2x + 5=-x^3+7x^2-5x+10
P(x)=2x²-3x+5
Q)x)=x³-5x²+2x-5
P+Q=2x²-3x+5+x³-5x²+2x-5=x³-3x²-x
P-Q=2x²-3x+5-(x³-5x²+2x-5)=2x²-3x+5-x³+5x²-2x+5=-x³+7x²-5x+10