Question

Type the correct answer in the box.

Simplify the following expression into the form a + bi, where a and bare rational numbers.
(3 + 7i) (-22i) - 4i(5 - 91)

Answer 1

154-278i.

Explanation:

(3+7i)(-22i)-4i(5-91)=-66i+154+344i=154+278i.