Question

Sejam os polinômios:

A= 5x²+2x-9
B= 3x²-7x+1
C= -4x²+x-2

a) A+B+C=
b) A-B=
c) B+C=

Answer 1

A) 5x^2+2x-9+3x^2-7x+1-4x^2+x-2

5x^2+3x^2-4x^2+2x-7x+x+1-9-2

4x^2 - 4x - 10

B) 2x^2 + 9x - 10

C) -x^2 -6x -1