Question

I really need on these cause I really don't know this and I need to understand. please help me please.​

Answer 1

Answer:

-6m^4-m^3

Step-by-step explanation:

First you move the parenthesis then you group the like terms after you group the like terms you get $m^4-7m^4-m^3$ which is adding the similar elements and after you add similar elements you get  -6m^4-m^3. Srry if this makes no sense

Answer 2

Answer:

${ - 6m}^{4} - {m}^{3}$

Step-by-step explanation:

If you want to simplify the equation this is the way to do it.

You have to collect the like terms. (-7m^3 + 6m^3) = -m^3 and (-7m^4 + m^4)= -6m^4

The term with the greater exponent goes first so the equation will look like this.