Question

1. what is the simplified form of $4x^2 + 2x - 5 + 3x^2 - x + 6$?

a. $3x^2 + 5x + 11$

b. $7x^2 + x + 1$

c. $7x^2 + x - 11$

d. $7x^2 - x + 1$

Explanation:

Step1: Combine $x^2$ terms

$4x^2 + 3x^2 = 7x^2$

Step2: Combine $x$ terms

$2x - x = x$

Step3: Combine constant terms

$-5 + 6 = 1$

Step4: Assemble simplified expression

$7x^2 + x + 1$

Answer:

b. $7x^{2}+x+1$