Question

Help a girl out

(2a^3−5a)−(7a+3a^2)

Answer 1

For this case we must simplify the following expression:

`(2a ^ 3-5a) - (7a+ 3a ^ 2) =`

By definition of the law of multiplication signs we have to:

`- * + = -`

Rewriting the expression we have:

`2a ^ 3-5a-7a-3a ^ 2 =`

We add similar terms taking into account that:

Equal signs are added and the same sign is placed.

`2a ^ 3-3a ^ 2-12a`

ANswer:

`2a ^ 3-3a ^ 2-12a`