Dane są wielomiany w(x)=3x³-4x+5
P(x)=-x³+3x²-6
Q(x)=-7x²+2x-1
wykonaj działania
a) w(x)-P(x)
b) 3w(x)-2P(x)-Q(x)
W(x)=3x³-4x+5
--------------------
a) W(x)-P(x)=
=3x³-4x+5 - (-x³+3x²-6)=
=3x³-4x+5 + x³-3x²+6=
=4x³-3x²-4x+11
b) 3w(x)-2P(x)-Q(x)=
=3*(3x³-4x+5) - 2*(-x³+3x²-6) - (-7x²+2x-1)
=9x³-12x+15 + 2x³-6x²+12 + 7x²-2x+1=
=11x³+x²-14x+28
a) w(x)-P(x)=3x³-4x+5-(-x³+3x²-6)=3x³-4x+5+x³-3x²+6=4x³-3x²-4x+11
b) 3w(x)-2P(x)-Q(x)=3(3x³-4x+5)-2(x³+3x²-6)-(7x²+2x-1)=9x³-12x+15-2x³-6x²+12-7x²-2x+1=7x³-13x²-14x+28
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W(x)=3x³-4x+5
P(x)=-x³+3x²-6
Q(x)=-7x²+2x-1
--------------------
a) W(x)-P(x)=
=3x³-4x+5 - (-x³+3x²-6)=
=3x³-4x+5 + x³-3x²+6=
=4x³-3x²-4x+11
--------------------
b) 3w(x)-2P(x)-Q(x)=
=3*(3x³-4x+5) - 2*(-x³+3x²-6) - (-7x²+2x-1)
=9x³-12x+15 + 2x³-6x²+12 + 7x²-2x+1=
=11x³+x²-14x+28
a) w(x)-P(x)=3x³-4x+5-(-x³+3x²-6)=3x³-4x+5+x³-3x²+6=4x³-3x²-4x+11
b) 3w(x)-2P(x)-Q(x)=3(3x³-4x+5)-2(x³+3x²-6)-(7x²+2x-1)=9x³-12x+15-2x³-6x²+12-7x²-2x+1=7x³-13x²-14x+28