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
sleet_krkn [62]
3 years ago
5

What equation results from completing the square and then factoring? x2 + 6x = 13

Mathematics
2 answers:
larisa [96]3 years ago
7 0
Step 1: Subtract 13 from both sides.
<span><span><span><span>x^2</span>+<span>6x</span></span>−13</span>=<span>13−13</span></span><span><span><span><span>x^2</span>+<span>6x</span></span>−13</span>=0</span>
Step 2: Use quadratic formula with a=1, b=6, c=-13.
<span>x=<span><span><span>−b</span>±<span>√<span><span>b2</span>−<span><span>4a</span>c</span></span></span></span><span>2a</span></span></span><span>x=<span><span><span>−<span>(6)</span></span>±<span>√<span><span><span>(6)</span>2</span>−<span><span>4<span>(1)</span></span><span>(<span>−13</span>)</span></span></span></span></span><span>2<span>(1)
</span></span></span></span><span>x=<span><span><span>−6</span>±<span>√88</span></span>2
</span></span><span><span>x=<span><span>−3</span>+<span><span><span>√22</span><span> or </span></span>x</span></span></span>=<span><span>−3</span>−<span>√22
</span></span></span>Answer would be 
<span><span>x=<span><span>−3</span>+<span><span><span>√22</span><span> or </span></span>x</span></span></span>=<span><span>−3</span>−<span>√<span>22</span></span></span></span>
levacccp [35]3 years ago
7 0

Apex answer (x+3)^2=22

You might be interested in
F(x) = (x - 2)²(x+1)​
Inessa [10]

(x - 2)²(x+1)​

(x-2)(x-2)

multiply the two brackets together

(x)(x)=x^2

(x)(-2)=-2x

(-2)(x)=-2x

(-2)(-2)=4

x^2-2x-2x+4

x^2-4x+4

(x^2-4x+4)(x+1)

multiply the brackets together

(x^2)(x)=x^3

(x^2)(1)=x^2

(-4x)(x)=-4x^2

(-4x)(1)=-4x

(4)(1)=4

x^3+x^2-4x^2-4x+4x+4

Answer:

x^3-3x^2+4

5 0
3 years ago
Find the value of x and y.
Oxana [17]

Answer:

x = 4

y = 12°

Step-by-step explanation:

Since each angles are equal ,

So each angle is 60°.

=> 5y = 60°

=> y = 60/5°

=> y = 12°

Again all sides will be equal ,

=> 5x - 6 = 3x + 2

=> 5x - 3x = 6+2

=> 2x = 8

=> x = 4

3 0
2 years ago
If x^2 - 16 &gt; 0, which of the following must be true?
zimovet [89]
The left hand side of the equation is a difference of two squares and may be factored out as follows,
                              (x - 4)(x + 4) > 0
They may be individually taken as,
                                     x - 4 > 0    ; x > 4
                                     x + 4 > 0   ; x < -4
Thus, the answer to this item is letter A. 
5 0
3 years ago
Write a statement that correctly describes the relationship between these two sequences; 2,4,6,8,10 and 1,2,3,4,5
marta [7]

Answer: Any number in the first sequence is two times the second.

Step-by-step explanation: Mark me as brainiest!

4 0
2 years ago
For each question, calculate the slope of a line that passes through the points
LekaFEV [45]
I don’t know it’s hard tho
8 0
3 years ago
Other questions:
  • Need Help on this ASAP Geometry
    7·2 answers
  • I need help am confused
    9·2 answers
  • A sociologist recently conducted a survey of citizens over 60 years of age who have net worths too high to qualify for Medicaid
    10·1 answer
  • Conditional statement:
    11·1 answer
  • PLEASE HELP!!!
    5·1 answer
  • -5x^5+35x^4-30x^3 can someone help me pls
    8·1 answer
  • It takes mike 18 minutes to finish reading 4 pages of a book. How long does it take for him to finish reading 30 pages??
    14·2 answers
  • Can someone please answer this question.
    13·1 answer
  • The square root of a whole number is between 600 and 700. The whole number must be between:
    14·1 answer
  • PLZ HELP AS SOON AS POSSIBLE!!!!!!!!! WILL GIVE LIKE, 5 STARS, &amp; BRAINLIEST; THE WHOLE SHEBANG; (Worth 20 Points!)
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!