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Elden [556K]
3 years ago
8

NEED HELP PLEASE!

Mathematics
1 answer:
USPshnik [31]3 years ago
5 0

Answer:

(x + (3+5i))^2 = x^2 + 6x + (10x+30)i - 16

Step-by-step explanation:

Complex numbers identity:

The complex numbers identity is:

i^2 = -1

Square of the sum:

(x + y)^2 = x^2 + 2xy + y^2

In this question:

(x + (3+5i))^2

x^2 + 2x(3+5i) + (3+5i)^2

x^2 + 6x + 10xi + 9 + 30i + 25i^2

x^2 + 6x + 9 + (10x+30)i - 25

x^2 + 6x + (10x+30)i - 16

So

(x + (3+5i))^2 = x^2 + 6x + (10x+30)i - 16

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ololo11 [35]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
Solve for x ax+3b=2f
Paladinen [302]

You said                                  ax + 3b = 2f

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3 0
3 years ago
How do you solve this
fiasKO [112]
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(x^2 + xy + 3) / (15x + 45)
Then factor to simplify
(x^2 + xy + 3) / (3(x + 15))



4 0
3 years ago
Find the ratio of 15 cm and 9 mm​
WITCHER [35]

Answer:

3:5 is the answer of your question

4 0
3 years ago
Read 2 more answers
Solve for n.<br> 4 x n= 21.6
Kay [80]

Answer:

n = 5.4

Step-by-step explanation:

Equation:  4n = 21.6

To solve this equation for n, divide both sides by 4 to get n by itself.

<u />

<u>Step 1:  Divide both sides by 4</u>

4 * n / 4 = 21.6 / 4

n = 5.4

Answer:  n = 5.4

3 0
3 years ago
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