Express the following products in standard form. (a) (-3+ 9i)(9 - 4i) (b) (-2- i)(2 - i) (a) (- 3 + 9i)(9 – 4i) = (Simplify your answer. Type your answer in the form a + bi.) (b) (- 2- i)(2 - i) = |...

Express the following products in standard form.

Extracted text: Express the following products in standard form. (a) (-3+ 9i)(9 - 4i) (b) (-2- i)(2 - i) (a) (- 3 + 9i)(9 – 4i) = (Simplify your answer. Type your answer in the form a + bi.) (b) (- 2- i)(2 - i) = | (Simplify your answer. Type your answer in the form a + bi.)