Question

What is the value of the product (3 – 2i)(3 + 2i)?

Answer 1

Use the expression 9(7 + 2x) to answer the following:

Part A: Describe the two factors in this expression. (4 points)

Part B: How many terms are in each factor of this expression? (4 points)

Part C: What is the coefficient of the variable term? (2 points)

Answer 2

= 13

Explanation:

(3 - 2i)(3+2i) = 9 + 6i - 6i -4i^2

i^2 = -1 so then it’s

9 +-4(-1)

= 9 + 4

= 13