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:
= 13
Step-by-step explanation:
(3 - 2i)(3+2i) = 9 + 6i - 6i -4i^2
i^2 = -1 so then it’s
9 +-4(-1)
= 9 + 4
= 13
