Question

How do you multiply `(3a ^ { 2} ) \cdot ( - 3a ^ { 2} )`?

Answer 1

`-9a^4`

Explanation:

Multiply 3*(-3) and it is -9.
Multiply `a^2*a^2` and it is "`a`" to the power of 2+2 (that is 4) ---> `a^4`
Write number and then this a^4 and you got now `-9a^4`