Question

Please help:

How do you simplify

(2-2i)(-7-4i)

Answer 1

How did you get 22?

Answer 2

-22+6i

Answer 3

@mrcoolguy

Answer 4

(2-2i)(-7-4i), use the FOIL method.
[(2) x (-7)] + [(2) x (-4i)] + [(-2i) x (-7)] + [(-2i) x (-4i)]
(-14) + (-8i) + (14i) + (8i^2)
i^2=(-1), so (8i^2)= -8
-8i - 14 - 8
= -8i - 22