Question

Simplify.
(-10 + 3i)²
Write your answer in the form a + bi.
Submit

Answer 1

91 - 60i

Explanation:

(-10 + 3i)² = (-10)² + (2 * -10 * 3i) + (3i)²

= 100 - 60i + 9i²

= 100 - 60i - 9

= 91 - 60i

In the form of a + bi, the answer is 91 - 60i.