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
solmaris [256]
2 years ago
5

Identify the steps to completing the square. Its on my algebra 2 homework and i have no idea what it means

Mathematics
1 answer:
Mrrafil [7]2 years ago
4 0
1. your leading coefficient has to be 1 (nothing before the x^2). If there is you have to divide that out before you start.
2. Move your constant (the number without any x attached) to the other side of the equation
3. take 1/2 of the b term (the one with the x attached) and then square it and then add it to both sides
4. Factor the left side
5. Set each factor equal to 0 and solve

Here is an example:

4x^2-24x+20=0
The first term is not a 1 so we have to divide it out by 4 first
x^2-6x+5=0
Move the 5 to the other side.  It becomes negative.
x^2-6x=-5
Take 1/2 of 6 (3) then square it (9) and add it to both sides.
x^2-6x+9=-5+9
Factor the left side
(x-3)(x-3)=4
(x-3)^2=4
To solve you need to square root both sides
x-3=+/-
x-3=+/-2
x=3+2=5
x=3-2=1
Those would be your two answers.

<span>Hope that helps</span>
You might be interested in
Joe and Mark wash and wax cars on the weekend. On each car, they spend $1.50 on soap, $3.00 on wax, and $1.25 on wheel &amp; tir
Gre4nikov [31]
Their total expenses are ...
.. $1.50 +3.00 +1.25 = $5.75

Their profit is the difference between their charge and their cost:
.. $25.00 -5.75 = $19.25

The correct choice is ...
B) $19.25
3 0
3 years ago
Read 2 more answers
Two thirds of 12 minus d
fenix001 [56]

Step-by-step explanation:

2 /3 of 12 - d

2/3 * 12 - d

8 - d

7 0
2 years ago
Read 2 more answers
Find the equation of the line that is parallel toy=32x−5
Alona [7]

Answer:

d/dx ( 32x - 5)

Step-by-step explanation:

i think this is right please tell me if its not

8 0
3 years ago
Find/solve for x in the image above
Flura [38]

Answer:

Step-by-step explanation:

Simply we know this is an isosceles triangle meaning that:

The other angle is also 35.

With this information, we can say that as a triangle adds up to 180, we can put this in a formula:

x+35+35 = 180

x+70 = 180

x = 110

8 0
2 years ago
Question : In the given figure , ∆ APB and ∆ AQC are equilateral triangles. Prove that PC = BQ.
lorasvet [3.4K]

Answer:

See Below.

Step-by-step explanation:

We are given that ΔAPB and ΔAQC are equilateral triangles.

And we want to prove that PC = BQ.

Since ΔAPB and ΔAQC are equilateral triangles, this means that:

PA\cong AB\cong BP\text{ and } QA\cong AC\cong CQ

Likewise:

\angle P\cong \angle PAB\cong \angle ABP\cong Q\cong \angle QAC\cong\angle ACQ

Since they all measure 60°.

Note that ∠PAC is the addition of the angles ∠PAB and ∠BAC. So:

m\angle PAC=m\angle PAB+m\angle BAC

Likewise:

m\angle QAB=m\angle QAC+m\angle BAC

Since ∠QAC ≅ ∠PAB:

m\angle PAC=m\angle QAC+m\angle BAC

And by substitution:

m\angle PAC=m\angle QAB

Thus:

\angle PAC\cong \angle QAB

Then by SAS Congruence:

\Delta PAC\cong \Delta BAQ

And by CPCTC:

PC\cong BQ

5 0
2 years ago
Read 2 more answers
Other questions:
  • What is the 8th term of the geometric sequence where a1 = 256 and a3 = 16?
    8·2 answers
  • To find the average percentage change in price
    5·1 answer
  • What are the common factors of 24, 64, and 88.
    6·2 answers
  • What is the slope of a line that is perpendicular to the line 2y – 3x = 8?
    6·2 answers
  • Find the slope of the line 3x – 2y = 6 (hint: find 2 points; then use the slope formula)
    8·1 answer
  • The sum of three consecutive integers is 270. Find the integers
    10·2 answers
  • HELP PLZ ALGEBRA NEED A GOOD GRADE I AM STRUGGLING WITH THIS QUESTION BASIC 9th GRADE
    14·1 answer
  • La suma de los ángulos internos de un heptágono es:<br> A. 720°<br> B. 900°<br> C. 360°<br> D. 1260°
    5·1 answer
  • I needs help please and tank chu
    12·1 answer
  • Nico rolled two numbers 250 times
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!