1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
inessss [21]
3 years ago
8

Simplify the expression. (2+3i)^2

Mathematics
1 answer:
Jet001 [13]3 years ago
8 0

Answer:

-5+12i

Step-by-step explanation:

(2+3i)^2

2^2+2×2×3i+(3i)^2

4+2×2×3i+(3i)^2

4+2×2×3i+3^2i^2

4+2×2×3i+9i^2

4+2×2×3i+9×-1

4+12i+9×-1

4+12i-9

(4-9)+12i

-5+12i

You might be interested in
If the diameter of a circle is 50 yds, the radius is​
netineya [11]

Answer:

r = 25 yds

Step-by-step explanation:

The radius is 1/2 of the diameter

r =1/2d

r =1/2( 50 yds)

r = 25 yds

5 0
3 years ago
Read 2 more answers
What is the value of x? <br><br><br><br> x =
mina [271]
Check the picture below.

3 0
3 years ago
Terms, like terms, coefficients, and constants of 4b+7b+5
Arlecino [84]

Answer:

Terms: 4b, 7b, 5

Like Terms: 4b, 7b

Coefficients: 4, 7

Constants: 5

Step-by-step explanation:

Terms: the numbers in an equation

Like Terms: terms that have the same variables

Coefficients: numbers that are next to a variable

Constants: numbers that don't have a variable

6 0
3 years ago
Let's solve your equation step-by-step.
AleksAgata [21]
3 - (5x + 4/5) = x/2
3 - 5x - 4/5 = x/2
3 - 4/5 = x/2 + 5x
15/5 - 4/5 = x/2 + 5x
11/5 = x/2 + 5x.....multiply both sides by 10
22 = 5x + 50x
22 = 55x
22/55 = x
2/5 = x

5 0
3 years ago
What is the answer?
Andrej [43]

Answer:

A I believe?

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Dan's ice cream comes in cartons of two sizes. The large carton holds 4 1/2 pounds. The small carton holds 1 3/4 pounds less. Ho
    8·1 answer
  • 2(x+4)-5=3x+3 solve for x
    6·1 answer
  • Question 26<br> Which expression is equivalent to 3x-2?
    10·1 answer
  • 0.094 write each decimal in words
    6·1 answer
  • Otto spent 3/4 of the money he had saved on a new video game. If the video game cost $48, how much money did he have before he b
    13·2 answers
  • (9x ^ 7 * y ^ 5 * z ^ 9) ^ 2
    11·2 answers
  • Evaluate the algebraic expression by using the distributive property: 7(7x+y)
    7·2 answers
  • What is the awsner to (-6)(8) + (-11)
    5·2 answers
  • Find the endpoint/midpoint.Please hurry
    7·2 answers
  • Lita must find the area of the sector enclosed by central angle QCR in circle C.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!