Question

I need help with this problem. I have to use the distributie property to write the expression without parantheses, then simplify if possible. It's been awhile since ive done this and I think i will understand once I see how it is written out. Thanks to anyone who replies.
Amy

-4(1-2m+n)+4

Answer 1

Multiply everything in the ( ) by -4.

-4+8m-4n + 4
Note the sign changes
Now gather terms. Check me
8m-4n

Answer 2

you have to bring the -4 into each number that is in the parenthesis by multiplication.

so you do -4 x 1, -4 x 2m, and -4 x n
you should get -4 + 8m - 4n

then add on the 4 at the end so you get
-4 + 8m -4n + 4

it simplifies to 8m - 4n since the positive and negative fours cancel

post back if u don't understand