Question

simplify the expression.(9m^2-m+3)-(2m^2-4m-1).....2m+2..........7m^2+3m+4..........7m^2-4m-2 or 7m^2 -5m+2

Answer 1

Start by distributing the negative sign on the second parentheses. Then remove the parens and combine like terms.

Answer 2

Well, the main idea here is to open the parentheses. When opening the parentheses of the second term (2m^2-4m-1), you should multiply each term by -1. After that, you have to add the like terms.

Answer 3

ok

Answer 4

Let us know what you got and we can check your answer

Answer 5

7m^2-5m+2???

Answer 6

No. You forgot to distribute the - to all the terms in the second paren..

\(-(2m^2 - 4m-1) = -2m^2 + 4m + 1\)

Answer 7

You multiply -1 by each term.

Answer 8

oh ok

Answer 9

7m^2+3m+4??

Answer 10

Yes.

Answer 11

thnks