Odpowiedź :
W(x) = 5x³ - 2x
P(x) = -6x³ - 5x² + 2x - 1
W(x) - 2P(x) = 5x³ - 2x - 2(-6x³- 5x² + 2x - 1) =
= 5x³- 2x + 12x³ + 10x² - 4x + 2 =
= 17x³ + 10x² - 6x + 2
5x³-2x - 2*(-6x³-5x²+2x-1)=
5x³-2x+12x³+10x²-4x+2=
17x³+10x²-6x+2
Odp. D
W(x) = 5x³ - 2x
P(x) = -6x³ - 5x² + 2x - 1
W(x) - 2P(x) = 5x³ - 2x - 2(-6x³- 5x² + 2x - 1) =
= 5x³- 2x + 12x³ + 10x² - 4x + 2 =
= 17x³ + 10x² - 6x + 2
5x³-2x - 2*(-6x³-5x²+2x-1)=
5x³-2x+12x³+10x²-4x+2=
17x³+10x²-6x+2
Odp. D