2007-12-12 10:26:57 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
(3m - n) - 5(3m - n)
(3m - n)(1 - 5)
(- 4) (3m - n)
4 (n - 3m)
2007-12-14 01:42:25 · answer #1 · answered by Como 7 · 3⤊ 0⤋
you distribute the 5 to the n and -3m
(3m-n)+(5n-15m)
then you distribute the plus to the (5n-15m)
3m-n+5n-15m
then you collect terms
3m-15m= -12m
-n+5n=4n
the answer is -12m+4n
and to the people that said 4(n-3m) that's also right but the simplified version is -12m+4n. because you can distribute the 4 to the n and negative 3 making it -12m+4n. It's not wrong..just the answer I gave is simplified and my math teachers hate, absolutely hate when we do not simplify all the way.
2007-12-12 10:40:24 · answer #2 · answered by Anonymous · 1⤊ 0⤋
i dont know how to "factor" it. But what i did was add like terms.
3m - n + 5n - 15m
=
-12m + 4n
2007-12-12 10:31:25 · answer #3 · answered by rgowlikar 1 · 0⤊ 1⤋
3m - n + 5n - 15m
4n - 12m
4(n - 3m)
There you go.
2007-12-12 10:34:22 · answer #4 · answered by Tesline T 2 · 0⤊ 0⤋
y is there a plus between them?
Most of the ppl down there didn't even factor.. =.= Ur just adding the variables together..
2007-12-12 10:30:17 · answer #5 · answered by 港式奶茶 3 · 0⤊ 1⤋
3m-n+5n-15m
4n-12m
4(n-3m)
2007-12-12 10:34:07 · answer #6 · answered by Lady Lefty 3 · 0⤊ 0⤋
4n
2007-12-12 10:31:51 · answer #7 · answered by J 6 · 0⤊ 2⤋
It's not 4n...
2007-12-12 10:32:40 · answer #8 · answered by UnknownD 6 · 0⤊ 1⤋