Question

Rewrite the following expressions by combining like terms.

7x+6x2+11+3x2+8x−8+x−3+1

Answer 1

Answer: 9x^2+16x+1 (I'm assuming the 6x2 & 3x2 were supposed to be exponents?)

Explanation:

Lets rearrange this first

6x^2+7x+11+3x^2+8x-8+x-3+1

now combine the x^2 coefficients:

9x^2+7x+11+8x-8+x-3+1

now combine the x coefficients:

9x^2+16x+11-8-3+1

now combine the remaining constants:

9x^2+16x+1

Answer 2

9x^2+16x+1=0
A=9 B=16 C=1
Fórmula de Báscara
X1= -8-raiz55/9
X2= -8+raiz55/9