Question

Collect like terms and simplify the expression :
12m${}^2$ - 9m + 5m - 4m${}^2$ - 7m + 10

Answer 1

Rearranging the terms, we have
12m${}^2$ - 4m${}^2$ +5m - 9m - 7m + 10
= (12 - 4)m${}^2$ + (5 - 9 - 7)m + 10
= 8m${}^2$ + (-4 - 7)m + 10
=8m${}^2$ - 11m + 10