Question

How do you simplify `(-6+5i)(7-5i)(6+6i)`?

Answer 1

`-102(1+i)`

Explanation:

`(-6+5i)(7-5i)(6+6i)=`

`(-42+30i+35i-25i^2)(6+6i)=`

`(-42+65i+25)(6+6i)=`

`(-17+65i)(6+6i)=`

`(-102-102i+390+390i^2)=`

`-102(1+i)`