Reviewing and need some refreshment help.
Simplify: (8x^2+3x-9)-2(4x^2-8x+3)

Question

Reviewing and need some refreshment help. 
Simplify: (8x^2+3x-9)-2(4x^2-8x+3)

.sam. · Answer

Any ideas?

anonymous · Answer

fix the second equation first?

.sam. · Answer

Yeah you distribute it what do you get?

anonymous · Answer

(8x^2-16x+6)

.sam. · Answer

Good, now use the first part subtract the second part
(8x^2+3x-9)-(8x^2-16x+6)

anonymous · Answer

so next it would be (3x-9)-(-16x+6)?

.sam. · Answer

Nope, you subtract it like this
$$(\color{red}{8x^2}\color{green}{+3x} \color{blue}{-9})-(\color{red}{8x^2} \color{green}{-16x} \color{blue}{+6})$$
$$\color{red}{8x^2-8x^2=0} \ \ \color{green}{3x-(-16x)=19x} \ \ \color{blue}{-9-6=-15}$$
You get
$$19x-15$$

anonymous · Answer

Still got the same answer but i understand (: so would i find x to simplify or leave it like that?

.sam. · Answer

It says $Simplify$ so you just leave it like this