Question

if A=2xcube-7xsquare+5x+6, B=-3xcube+2xsquare-2x+5 and C=xcube+5xsquare-3x-11, find A+B+C​

Answer 1

Answer:0

Step-by-step explanation:

Given,

A=2x^3-7x^2+5x+6,

B= -3x^3+2x^2-2x+5, and

C=x^3+5x^2-3x-11

Now,(A+B+C)=(2x^3-3x^3+x^3)+(-7x^2+2x^2+5x^2)+(5x-2x-3x)+(6+5-11)

=0+0+0+0= 0

Answer 2

Answer:

0

Step-by-step explanation:

A+B+C=3x^3-3x^3-7x^2+7x^2+5x-5x+11-11

=0