how do you simplify 6i (-9+2)+2 (-9+3i)

Question

This is precalculus need help on how to do this problem

Answer 1

Hi Socorro,
6i (-9+2)+2 (-9+3i)
6i(-7) +2(-9+3i)
-42i + -18 +6i
-36i - 18
-18(2i+1)
Best,
Starlyte H.

Answer 2

Hi Socorro,

 

                               simplify                   6i (-9+2)+2 (-9+3i)

Simplify the parentheses:                             6i(-7) +2(-9+3i)

Multiply and Use the distributive property:   -42i + -18 +6i

Combine like terms:                                   -36i - 18

 

Hope this helps you understand the process.