Question

Dane są wielomiany W(

Wykonaj wskazane działania:

a)W(x)+Q(x)

b)W(x)-Q(x)

c)W(x)-P(x)

d) W(x)*Q(x)

e)W(x)*P(x)

f)W(x)-P(x)+Q(x)

g)2W(x)-5Q(x)+W(x)*P(x)

Answer 1

A.(x³-2x+1)+(-x³+3x)=

x³-2x+1-x³-3x=

-5x+1

 

B.(x³-2x+1)-(-x³+3x)=

x³-2x+1+x³-3x=

2x³-5x+1

 

C..(x³-2x+1)-(2x+3)=

x³-2x+1-2x-3=

x³-4x-2

 

D.(x³-2x+1)(-x³+3x)=

-x6+3x4+2x4-6x2-x3+3x=

-x6+5x4-x3-6x2+3x

 

E.(x³-2x+1)(2x+3)=

2x4+3x3-4x2-6x+2x+3=

2x4+3x3-4x2-4x+3

 

F.(x³-2x+1)-(2x+3)+(-x³+3x)=

x³-2x+1-2x-3-x³+3x=

-x-2

 

G.2(x³-2x+1)-5(-x³+3x)+(x³-2x+1)(2x+3)=

2x³-4x+2+5x³-15x+2x4+3x³-4x²-6x+2x+3=

2x4+10x³-4x²-23x+5