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adelina 88 [10]
3 years ago
12

Simplify the answer

Mathematics
1 answer:
Andru [333]3 years ago
8 0

Answer:

- 20 + 8i

Step-by-step explanation:

Noting that i²  = - 1

Given

[(6i + 9) + (4i - 5)] × 2i ← evaluate the terms inside the square bracket

= ( 6i + 9 + 4i - 5 ) × 2i

= (10i + 4) × 2i ← multiply each term in the parenthesis by 2i

= 20i² + 8i

= 20(- 1) + 8i

= - 20 + 8i

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30 points and brainlist question on the photo number 25 only
pogonyaev
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8 0
3 years ago
Find the solution for the question.<br> X - 4)(x + 3) = 0
DiKsa [7]

Step-by-step explanation:

The answer is 0 because all you have to do is calculate

5 0
3 years ago
Given the diagram, which theorem would you use to find AD?
bagirrra123 [75]

Answer:

B

AD will be 20

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3 0
3 years ago
Is 3/4 equivalent to 8/12
aniked [119]
<u>no</u> because when simplify 8/12 it gives you 2/3 not 3/4
6 0
4 years ago
Help please loves!!!! I'm horrible at math!!!
yan [13]
There are no real solutions.

if you subtract 20 from both sides, you get
x² = -16

You cannot find the square root of a negative number without using i, so there are no real number solutions.
6 0
4 years ago
Read 2 more answers
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