Question

What is the standard form of (7 - 5i)(2 + 3i)?

A. 29 + 11i

B. -11 + 29i

C. 11 - 29i

D. -29 + 11i

Answer 1

A

Explanation:

Answer 2

A

Explanation:

Note that i² = - 1

Given

(7 - 5i)(2 + 3i) ← expand factors using FOIL

= 14 + 21i - 10i - 15i² ← collect like terms

= 14 + 11i + 15

= 29 + 11i → A