How do you simplify 15x^2+1-[4(x^2-6)+5]?

2 Answers
Apr 23, 2018

11x^2+20

Explanation:

15x^2+1-[4(x^2-6)+5]

15x^2+1-[4x^2-24+5]

15x^2+1-4x^2+24-5]

11x^2+20

Apr 23, 2018

11x^2-20

Explanation:

We go through the inner parenthesis to the outer ones:
4(x^2-6)=4x^2-24
4x^2-24+5=4x^2-19 15x^2+1-(4x^2-19)=15x^2+1-4x^2+19
=11x^2-20