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
Art [367]
3 years ago
11

What number must be added to both sides of the equation to complete the square ?

Mathematics
1 answer:
77julia77 [94]3 years ago
7 0
First consider (x+c)^2 where c is just a random constant. if we expand this by foil (which is distributive property twice), we get x^2 + 2cx+ c^2. we want to find c^2 and to do that, we can first find c. we can find c by looking at the 2cx term. this term should match with 12x, so therefore 2c = 12 so c = 6. this also implies that c^2 = 36.
note that for this problem i was working backwards which is a very powerful problem solving tool: start with what you want to attain, and then see how you can go from where you are now to get to your destination.

let me know if you have any questions!!!

You might be interested in
1) Factor. 25x^2−16y^2 Enter your answer in the boxes.<br><br> (___),(___)
777dan777 [17]
(5x+4y),(5x-4y)
Hope this helps
5 0
3 years ago
Read 2 more answers
Describe the transformations from the graph of f(x)=∣x∣ to the graph of r(x)=∣x+2∣− 6.
scZoUnD [109]

Answer:The graph f(x)   is shifted 2 units to left and shifted down by 6 units to form the graph r(x) .

Step-by-step explanation:

8 0
3 years ago
Help with algebra 3 please
Ratling [72]
The answer for that is D. You can use Desmos to solve some.
8 0
3 years ago
Write a multiplication equation to represent each division equation 50 divided by 10 equals 5
ASHA 777 [7]

Answer: this questions kind of confusing, but my guess is:

10x5=50 Becuase that's the same thing as saying 50/10 =5

Step-by-step explanation:

5 0
3 years ago
Look at the following graph of the given equation. Determine whether the equation is the function. Explain why or why not.
Drupady [299]

Answer:

Step-by-step explanation:

It is a function. Every x has only 1 y associated with it. You cannot find an exception to this rule.

Stated another more common  way: if you take a ruler and lay it flat on the graph so that the ruler is parallel to the y axis, you will find the ruler will go through only one y for every x. That's called the vertical line test.

3 0
3 years ago
Other questions:
  • Given (x) = -3x+2, evaluate f(5)
    13·1 answer
  • Please help me on this equation<br> 9x-71&gt;3(3x-7u)
    7·2 answers
  • Solve 4+(-8+s)=20<br> -4<br> 16<br> 24<br> 8
    11·1 answer
  • Need some help. Its hard.
    6·1 answer
  • What is the percent decrease from 120% to 90%
    5·1 answer
  • wich expression represents the phrase 15 fewer than the quotient of a and b I WILL GIVE BRAINLIEST A.ab-15 B.a/b-15 C.15-a/b D.1
    5·1 answer
  • (Please help) Find the area of the trapezoid.
    10·1 answer
  • Please help!!
    10·2 answers
  • Some biologists believe the evolution of handedness is linked to complex behaviors such as tool-use. Under this theory, handedne
    6·1 answer
  • A tennis court is surrounded by a fence so that the distance from each boundary of the tennis court to the fence is the same, x
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!