Evaluate (2 - 5i) (p + q) i when p = 2 and q = 5i

a. 29i

b. 291-20

C.-21i

d. 29

A. 29i

Step-by-step explanation:

Step 1: Plug in given variables

(2 - 5i) (2 + 5i) i

Step 2: Difference of squares (expand)

(4 - 25i²) i

Step 3: Imaginary numbers rules

(4 - 25 (-1)) i

Step 4: Combine like terms

(4 + 25) i

(29) i

Your final answer will be 29i