Question

How do you simplify `6(-7+6i)(-4+2i)`?

Answer 1

`96 - 228i`

Explanation:

`6 (-7+6i)(-4+2i) = 6 ( 28 -14i -24i +12i^2)`

`=6 ( 28 -38i -12 ) [i^2=-1] = 6( 16-38i) = 96 - 228i`

`:. 6 (-7+6i)(-4+2i)=96 - 228i` [Ans]