Question

Subtract (-4m
`( {4m}^2 + 5mw - {12w}^2)from( { - 10m}^2 - 11mw { - 7}^2`.pls

Answer 1

The subtractiion we are asked to carry out is

`(-10m^2-11mw-7w^2)-(-4m^2+5mw-12w^2)`

In subtracting the expression given we first get rid of the parenthesis by writing out the subtraction as

`-10m^2-11mw-7w^2+4m^2-5mw+12w^2`

now we combine the like terms to get

`(-10m^2+4m^2)+(-11mw-5mw\text{)}+(-7w^2+12w^2)`

simplifying the above gives

`-6m^2-16mw+5w^2`

which is our answer!