Question

Considerando os polinômios a=6x3+5x2-8x+15 , B= 2x3-6x2-9x+10 e C= x3+7x2+9x+20 calcule : a) A+B+C b) A-B-C c) B-C ?

Answer 1

c)b-c
-B=2x^3+6x^2+9x-10
-C=-x^3-x^2-x-20
r=x^3-x^2-x-10