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
arlik [135]
3 years ago
5

Solve the given equation by completing the square.

Mathematics
2 answers:
Dmitriy789 [7]3 years ago
6 0

Answer:

a = -4, b = 3 and c = 6 (OR)

a = -4, b = -3 and c = 6

Step-by-step explanation:

x^{2} +8x = 38

Add 16 to both sides.

x^{2} +8x+16 = 38 + 16

(x+4)^{2} =54

x + 4 = \sqrt{54} or x + 4 = -\sqrt{54}

x+4=3\sqrt{6} or x+4=-3\sqrt{6}

x=-4+3\sqrt{6} or x=-4-3\sqrt{6}

Therefore, a = -4, b = 3 and c = 6 (OR)

a = -4, b = -3 and c = 6

alexgriva [62]3 years ago
5 0

Answer

i got it right a = -4, b = 3 and c = 6 (OR)

a = -4, b = -3 and c = 6

Step-by-step explanation:

You might be interested in
Order from least to greatest
ddd [48]
Your answer will be :

the square root of 14, the square root of 54/3, 6.8, the square root of 26/3.
7 0
3 years ago
What is the cube root of -216 end root
givi [52]
The cube root of -216 is -6.0
7 0
3 years ago
Read 2 more answers
What is the median of the following numbers?<br> 6,4, 1,9,3,8,3,5, 10
Sergeu [11.5K]

Median = 5

Mean = 5.4444444444444

Mode: 3

Range = 9

Minimum =   1

Maximum =  10

How to find Median:

Arrange your numbers in numerical order.  Then the second step is to have an odd number, divide by 2 and round up to get the position of the median number.  The last step is to find the even number and if you have it, divide it by 2.

Answer: 5

Hope this helps.

3 0
2 years ago
How do you solve 6) n2+7n+15=5 by factoring?
charle [14.2K]
First, you need to set the equation equal to zero:

n^2 + 7n + 10 = 0

Now we factor. We need to find two numbers that add up to 7 and multiply to 10. 

2 + 5 = 7
2 * 5 = 10

Now, we just need to write this as a polynomial:

(n + 2) (n + 5)
is our answer. 

Hope this helps!
8 0
3 years ago
$37 dinner; 15% tip whats the total cost
kogti [31]
37*.15=5.55
37+5.55=42.55
4 0
3 years ago
Other questions:
  • The dance committee has 1036 flowers.They want to divide the flowers evenly among 28 centerpieces.How many flowers will be in ea
    10·2 answers
  • Write an expression that represents the quantity 5 more than a number
    13·1 answer
  • 1/6 the sum of 16 and 20
    5·2 answers
  • I WILL GIVE BRAINLIEST<br> Solve for x<br> Answer must be simplified<br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B7%7D
    5·1 answer
  • Nelson bought a shirt for $29.50 and a pair of shoes for $50. If sales tax is 8% what is the total price Nelson pays for the ite
    10·1 answer
  • Mrs.fisher has 91 watches on display at her store. She says she can arrange them into rows and colums without any watch left ove
    8·1 answer
  • What is the missing step in solving the inequality 4(x – 3) + 4 &lt; 10 + 6x? 1. The distributive property: 4x – 12 + 4 &lt; 10
    7·2 answers
  • 2x - × + 4x simplify​
    12·1 answer
  • Which expression is a factor of the expression 20c3+540y3​
    8·1 answer
  • The figure shows triangle PQR and line segment AB, which is parallel to QR:
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!