The answer should be J.15.
You would multiply 4 on both sides
5x=2
then you would divide 5 on both sides
x=2/5
It's called a rectangle. This is just a definition, so there is not much to explain.
Answer:
A
Step-by-step explanation:
Noting that i² = - 1
Given
(7 - 3i)(8 + 4i) ← expand factors using FOIL
= 56 + 28i - 24i - 12i²
= 56 + 4i - 12(- 1)
= 56 + 4i + 12
= 68 + 4i → A
