Question

Dados P1(x)= 5x^4+4x^3-5x P2(x)= 2x^4+3x^3+x P3(x)= 2x^4-4x^3+3x-5
Calcule:
a) P1(x)+P2(x)
b) P3(x)-P2(x)

Answer 1

Dados:

 P1(x)= 5x^4+4x^3-5x;
 P2(x)= 2x^4+3x^3+x ;
P3(x)= 2x^4-4x^3+3x-5;

a) P1(x) + P2(x)

5x^4+4x^3-5x + 2x^4+3x^3+x

7x^4+7x^3-4x

b) P3(x)-P2(x)

2x^4-4x^3+3x-5 - ( 2x^4+3x^3+x)

2x^4-4x^3+3x-5 - 2x^4-3x^3-x

0x^4-7x^3+2x-5

-7x^3+2x-5