Question

Dane są wielomiany:

\\

Z góry dziękuję za pomoc :)

Answer 1

a) 2W(x)+3P(x)-Q(x) = 2(-x³+2x²-x+5)+3(2x²-x+1) -(5x+2)=

                               = -2x³+4x²-2x+10+6x²-3x+3-5x-2=

                               = -2x³+10x²-10x+11

b) W(x)-[P(x)+3Q(x)]= -x³+2x²-x+5-[2x²-x+1+3(5x+2)]=

                               = -x³+2x²-x+5-[2x²-x+1+15x+6]=

                               = -x³+2x²-x+5-2x²+x-1-15x-6=

                               = -x³-15x-2