Question

Simplify (14x2 + 8x + 12) - (5x2 + 12x + 18).


9x2 - 4x - 6


9x2 - 20x - 30


9x2 + 20x + 30


9x2 + 4x + 6

Answer 1

you can do this one, just distribute the negative one and combine like terms

Answer 2

(14x2 + 8x + 12) - (5x2 + 12x + 18).
14x2-5x2+8x-12x+12-18
x2(14-5)+x(8-12)+12-18

Answer 3

ok that is one other way to do it

Answer 4

I don't understand any of this. all i'm asking is for something that actually makes sence. i got less than 30 minutes to finish this test or I get held back

Answer 5

9x2-4x-6

Answer 6

I got C and i just wanna know what I did wrong..

Answer 7

show your work and we will tell you what you did wrong

Answer 8

I don't even understand my work, i just added and multiplies and whatever..

Answer 9

ok so you know what a negative sign does?

Answer 10

yeah.. no

Answer 11

I am referring to the negative sign in this problem

Answer 12

@precal I do, I'm timed on this test.

Answer 13

doesn't matter, the higher up in math you go, the more difficult it becomes especially if you didn't understand the basics