So, the right option is 1. so if my ans was helpful u can follow me.
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
<span>The number 123,000,000,000 in scientific notation is written as : 1.23 * 10 to the eleventh power.
Thats an example to help you out ;)
</span>
Answer:
7.5
Step-by-step explanation: First divided 5 divided by 2/3 and then you will get 7.5 can I get my brainllest