Dane sa wielomiany :
i
Oblicz:
a) w(x) + u(x)
b) w(x) - u(x)
c) 2w(x) - 3u(x)
Bardzo prosze o kolejne kroki rozwiązania :).
Pozdrawiam ;)
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a) w(x) + u(x)=(2x³-x²-1)+(-x³+2x²+1)=2x³-x²-1-x³+2x²+1=x³+x²
b) w(x) - u(x)=(2x³-x²-1)-(-x³+2x²+1)=2x³-x²-1+x³-2x²-1=3x³-3x²-2
c) 2w(x) - 3u(x)=2(2x³-x²-1)-3(-x³+2x²+1)=4x³-2x²-2+3x³-6x²-3=7x³-8x²-5