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
anastassius [24]
1 year ago
11

X ² + 4x + 1 = 0Solve the quadratic equation by completing the square​

Mathematics
1 answer:
oksian1 [2.3K]1 year ago
5 0

Answer:

X ² + 4x + 1 = 0

solution attached in picture

You might be interested in
Can someone quickly help me solve this ?!
Rainbow [258]

Answer: 8

Step-by-step explanation: if you count the angels and the sides then you'll get the answer 8..

7 0
3 years ago
Read 2 more answers
Find the equation of the line that passes through points A and B.<br> y<br> X A (4, 7)<br> B (2, 3)
g100num [7]

Answer:

y = 2x - 1.

Step-by-step explanation:

The slope = (7-3)/(4-2)

= 4/2

= 2.

y - y1 = m(x - x1)

Here m = 2 , x1 = 2 and y1 = 3. So we have:

y - 3 = 2(x - 2)

y = 2x - 4 + 3

y = 2x - 1.

We have used the point (2, 3) to find the equation but we could have used (4, 7). We would have got the same answer.

3 0
3 years ago
Read 2 more answers
3+-√(-3)^2 - 4(5)(-1)
Alona [7]

Answer:

Step-by-step explanation:

Easy way to do this is step by step.  Your quadratic, from your entry, must be

5x^2-3x-1.

Step by step looks like this, one thing at a time:

x=\frac{3+\sqrt{(-3)^2-4(5)(-1)} }{2(5)} becomes

x=\frac{3+\sqrt{9-(-20)} }{10} becomes

x=\frac{3+\sqrt{9+20} }{10}

and this of course is

x=\frac{3+\sqrt{29} }{10}

Do the same with the subtraction sign to get the other solution.

If you're unsure of how to enter it into your calculator, do it step by step so you don't mess up the sign.  If you enter it incorrectly, you could end up with an imaginary number when it should be real, or a real one that should be imaginary.

Just my advice as a high school math teacher.

3 0
3 years ago
What rule is represented by the table?
Oliga [24]
The answer is A because when you plug x into the equation, you get y as the answer.
5 0
2 years ago
I need this question to be answer asap
myrzilka [38]
If r(x)= 11x, and c(x)=6x +20, then just put that into the equation.
So instead of p(x) = r(x) - c(x)
I would be p(x) = 11x - 6x + 20
Now solve.
p(x) = 5x + 20 is your final answer, so A.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Evaluate the geometric series or state that it diverges. <br><br> [infinity]<br> Σ e^-5n<br> n=0
    10·1 answer
  • In a study by the Texas A &amp; M University, found there were 23,000 prairie dogs in Texas in 2000. By 2010, the number has inc
    11·1 answer
  • In 8 years, a girl will be 3 years older than twice her present age. How old is she now<br>​
    13·1 answer
  • What equation represents a line which is perpendicular to x=0
    13·1 answer
  • Find the length of AC
    8·1 answer
  • PLEASE HELP 30 POINTS <br> Find the angle measure indicated.<br> 140 °<br> ?
    14·1 answer
  • F(x) -x^2 -2x+13 help
    7·2 answers
  • Determine whether 3x + 12 + x is equivalent to
    9·1 answer
  • HELP ASAP You are preparing to move into a new house. The walls of your room will measure 10 feet by 12 feet.
    5·1 answer
  • Solve by completing the square and hunt for twice the larger root. x^2-9x+3=0
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!