Question

Subtract and simplify: (3x^2 + 7) – (x^2 – 6x – 4)

Question 3 options:

2x^2 + 6x + 3


4x^2 – 6x + 3


2x^2 + 6x + 11


4x^2 + 3

Answer 1

Distribute the Negative Sign:=3x2+7+−1(x2−6x−4)=3x2+7+−1x2+−1(−6x)+(−1)(−4)=3x2+7+−x2+6x+4Combine Like Terms:=3x2+7+−x2+6x+4=(3x2+−x2)+(6x)+(7+4)
Answer is =2x2+6x+11