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
Anton [14]
3 years ago
6

X^2 + 4x + 4 = 10please help!! I missed class! show steps!​

Mathematics
1 answer:
lina2011 [118]3 years ago
3 0

Answer:

x = √(10) - 2, -√(10) - 2

Step-by-step explanation:

x² + 4x + 4 = 10

factor:

(x + 2)² = 10

take square root of both sides:

x + 2 = ±√(10)

split into 2 equations:

x + 2 = √(10)      x + 2 = -√(10)

solve both equations and collect solutions:

x = √(10) - 2, -√(10) - 2

You might be interested in
The width of a rectangle is two cm less than 8 times the length. The perimeter is 88 cm. What is the width and length of the rec
kati45 [8]

Let's the length to be x,

then the width is 8x - 2.

Perimeter of a rectangle = 2*Width + 2*Length

Perimeter of the rectangle = 2(8x-2) + 2x = 16x - 4 + 2x = 18x - 4

Ar the same time, Perimeter of the rectangle = 88.

So, we can write

18x - 4 = 88

18x = 84

9x=42

x= 42/9 cm (length) or ≈ 4.67 cm (length)

8x - 2 = 8*42/9 - 2 ≈ 35.33 cm (width)


6 0
4 years ago
Classify the following triangle as acute, obtuse, or right
dybincka [34]

Answer:

Please provide an image of the triangle so that an answer can be provided.

6 0
3 years ago
Help !!!!!!!!!!!!!!!!!!
masya89 [10]

Answer:

10/49

Step-by-step explanation:

You just have to multiply the numerators and denominators from each other, then cancel out the common factors that is 3 only.

:)

8 0
3 years ago
What are the real zeros of x3 + 4x2 − 9x − 36?
ruslelena [56]

Answer:

C

Step-by-step explanation:

x^3+4x^2-9x-36=0

or x²(x+4)-9(x+4)=0

or (x+4)(x²-9)=0

or (x+4)(x+3)(x-3)=0

x=-4,-3 or 3

8 0
4 years ago
How to find the domain of a composite function?
Rainbow [258]
The domain of the inside function exists, and then an analysis of the outside function may yield an extra  restriction to the domain.
4 0
3 years ago
Other questions:
  • How do I answer this question❓
    10·1 answer
  • Combine Like Terms to Simplify the expression<br> -4+7-2x+10x =
    8·1 answer
  • 5c - 4 - 2c + 1 = 8c + 2
    9·1 answer
  • So I need to calculate the surface area for each figure. And the base is 6 and Side is 3?
    6·1 answer
  • Which points are located on the x-axis?
    9·1 answer
  • How many solutions does the system have?
    7·2 answers
  • Does anyone know how to like graph it for me like just tell me where they go please and thank you!
    9·1 answer
  • Need help ! no links and no fake answer
    6·1 answer
  • Find the value of b. Round your answer to the nearest tenth.
    14·1 answer
  • Giving brainliest :)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!