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larisa [96]
4 years ago
11

(3 + 2i) - (5 -7i) Write answer in standard form a +bi

Mathematics
1 answer:
Bess [88]4 years ago
4 0

(3 + 2i) - (5 - 7i)

Distribute the - sign

3 + 2i - 5 + 7i

Combine like terms

-2 + 9i

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PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!!!
levacccp [35]
The answer is 20x-21y+14
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3 years ago
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This is a two-step equation. Steps: first add or subtract, then divide or multiply. 1. 5x - 7 = 48 2. 7n - 2 = 54 3. -4y + 7 = -
Bumek [7]

1. 5x - 7 = 48

5x = 48 + 7 = 55

x = 55/5 = 11

2. 7n - 2 = 54

7n = 54 + 2 = 56

n = 56 / 7 = 8

3. -4y + 7 = -21

-4y = -21 - 7 = -28

y = -28 / -4 = 7

4. x/2 + 5 = 12

x/2 = 12 - 5 = 7

x = 7 * 2 = 14

5. x/3 - 7 = 13

x/3 = 13 + 7 = 20

x = 20 * 3 = 60

6. -7 - 2 = 33 <- did you type this wrong?

-7x - 2 = 33

-7x = 33 + 2

-7x = 35

x = 5

7. -3x - 8 = -41

-3x = -41 + 8 = -33

x = -33 / -3 = 11

8. 3n - 7 = 35

3n = 35 + 7 = 42

n = 42 / 3 = 14

9. 7y + 9 = -47

7y = -47 - 9 = -56

y = -56 / 7 = -8

10. -8x + 4 = 68

-8x = 68 - 4 = 64

x = 64 / -8 = -8

11. 4n - 7 = -43

4n = -43 + 7 = -36

n = -36 / 4 = -9

12. 5x - 7 = 108

5x = 108 + 7 = 115

x = 115 / 5 = 23

13. 8 - 5w = -37

-5w = -37 - 8 = -45

w = -45 / -5 = 9

14. 42 = 18 + 4n

4n = 42 - 18 = 24

n = 24 / 4 = 6

15. 70 - 6x = 40

-6x = 40 - 70 = -30

x = -30 / -6 = 5

5 0
4 years ago
Please answer the question below.
tatuchka [14]

Answer:

The answer is the 2nd and 4th one

6 0
3 years ago
Rewrite c(x)=x^2+5x+2/x-3 in the form y=q(x)+r(x)/b(x) where r has a degree less than b.
Shalnov [3]

Answer:

a(x)/b(x) in the form q(x) + r(x)/b(x), where a(x), b(x), q(x), and r(x)

Step-by-step explanation:

8 0
3 years ago
Um i dnt understand maybe u can help me....
kirill115 [55]
The answer is that because I just did that in class.

3 0
3 years ago
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