Answer:
1. 37 − 4i
2. 3x²y³z ∛(3xz²)
Step-by-step explanation:
1. Distribute.
(2 − 5i) (3 + 7i) − (4 + 3i)
6 + 14i − 15i − 35i² − 4 − 3i
6 − i + 35 − 4 − 3i
37 − 4i
2. ∛(81x⁷y⁹z⁵)
∛(3⁴x⁷y⁹z⁵)
Factor out highest powers that are multiple of 3.
∛(3³x⁶y⁹z³ · 3xz²)
3x²y³z ∛(3xz²)
