Lesson 2: Operations with Complex Numbers Answers

(9 – 6i) × m = 9 – 6i What is m?

(6 + 3i)(6 − 3i) = [___] (4 − 5i)(4 + 5i) = [___] (−3 + 8i)(−3 − 8i) = [___]

–2 + 14i –4 + 28i –20 + 20i

Select the correct answer from the choices given(13 + 4i) + n = 0 What is n?

Which addition expression has the sum 8 – 3i ?

Which subtraction expression has the difference 1 + 4i?

Multiply and simplify the product.–12i × 3iSelect the product.

Multiply and simplify the product.(3 – 5i)(–2 + 4i) Select the product.

Question text not available

(6 + 3i)(6 − 3i) = [___] (4 − 5i)(4 + 5i) = [___] (−3 + 8i)(−3 − 8i) = [___]

–3636–6 – 6i 36i

Which pair of complex factors results in a real-number product?

Find the sum of (–4 + i) and (10 – 5i).

Subtract (3 + 2i) from (–9 – 8i).

Multiply and simplify the product.2i(4 – 5i) Select the product.

Multiply and simplify the product.(8 – 5i)2 Select the product.

(6 + 3i)(6 − 3i) = [___] (4 − 5i)(4 + 5i) = [___] (−3 + 8i)(−3 − 8i) = [___]

What values of c and d would make the following expression represent a real number?i(2 + 3i)(c + di)