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
FromTheMoon [43]
2 years ago
9

Solve for x: x^2 + 14x + 49

Mathematics
1 answer:
Kaylis [27]2 years ago
3 0

Answer: -7twice

Step-by-step explanation:

This is a question on root of quadratic equation. The interpretation of the question

x² 14x + 49 is

x² + 14x + 49 = 0.meaning that we are to find two possible values for x that will make the expression equal 0.

We can use any of the methods earlier taught. For the purpose of this class, I am using factorization methods

x² + 14x + 49 = 0

Now, find the product of the first and the last terms, is

x² × 49 = 49ײ

Now find two terms such that their productbis 49x² and their sum equals 14x, the one in the middle.

We have several factors of 49x² but only one will give sum of 14x. Because of the time, I will only go straight to the required factors .

49x² = 7x × 7x and the sum gives 14x the middle terms..

Now we now replace the middle one by the factors and then factorize by grouping.

x² + 14x + 49 = 0

x² + 7x + 7x + 49 = 0

x(x + 7) + 7(x + 7) = 0

(x + 7)(x + 7). = 0

Now to find this value of x,

x + 7 = 0

x. = -7twice.

The root of the equation = -7twice.

You might be interested in
Can you use the properties of exponents you discovered to simplify 5^2 · 2^5 ?
Nostrana [21]

5² × 2⁵ = 25 × 32 =. 800

Hope this helps

5 0
2 years ago
Is it ever possible that a decreasing function could have a positive slope?
kotegsom [21]

Answer:

yes because it is in the positive side

3 0
2 years ago
Find the inverse of the function y = x2 - 12.
Semmy [17]

Good evening ,

Answer:

The inverse of the function y = x² - 12 is

x = √(y + 12)

Step-by-step explanation:

for y ≥ -12 :

x² - 12 = y ⇔ x² = y + 12 ⇔ x = √(y + 12).

:)

7 0
2 years ago
Simplify 3.2-5.1n-3n+5
Shtirlitz [24]
The answer is 
-8.1n+8.2
5 0
3 years ago
Read 2 more answers
The following table shows the number of students in a school who like cooking and/or reading:
alina1380 [7]

Answer:

I did it and is 36

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Is b the y intercept on mx+b
    10·2 answers
  • What is the value of x?
    7·1 answer
  • An extremely simple (and surely unreliable) weather prediction model would be one where days are of two types: sunny or rainy. A
    5·1 answer
  • Negative 5 minus t/6 > equal too negative 9
    5·1 answer
  • What is the slope of the line passes through the points (5,-4) and (7,-4)
    15·2 answers
  • Six hats and three visors cost $71.25 while five visors and two hats cost $54.75. How much does a hat cost?
    14·1 answer
  • If 6=2x+4y, what is the value of x+2y?
    8·2 answers
  • Which figures net consists of four triangles and a square
    15·2 answers
  • Ivan finished Four-fifths of his math homework problems and all 3 problems for his science homework before dinner. If he finishe
    8·1 answer
  • Please help, and if you can please explain! :D​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!