## anonymous 3 years ago Choose the correct simplification of the expression −6x^2(4x − 7x^2 − 2). 42x^4 + 24x^3 − 12x^2 −42x^4 + 24x^3 − 12x^2 −13x^4 − 2x^3 − 8x^2 42x^4 − 24x^3 + 12x^2

1. anonymous

got a guess for this one?

2. anonymous

do you know how to distribute?

3. anonymous

well the teacher told me its 3

4. anonymous

your teacher is wrong

5. anonymous

o.O thats somethin i dont hear everyday lol

6. anonymous

"do you know how to distribute?"

7. anonymous

uhmmm kinda. but ill probably get it wrong.

8. anonymous

Just the distribute −6x^2 and -2 that'll make it so you can narrow the answer down to the correct one, or you can do the rest too lol

9. anonymous

$−6x^2(4x − 7x^2 − 2)$ $=-6x^2\times 4x-6x^2\times (-7x^2)-6x^2\times (-2)$ is the first step

10. anonymous

as @gaara438125 said, the last term will be $$+12x^2$$ which narrows the answer to one choice

11. anonymous

yup. thanks guys. but can u explain it fully ? i dont jus want the answers.

12. anonymous

and i have no idea who to give the fan/medal too lol

13. anonymous

satellite73 explained the process $−6x^2(4x − 7x^2 − 2)$ $(-6x^2\times 4x) + (-6x^2\times -7x^2) + (-6x^2\times -2)$

14. anonymous

is there another way to do it ?