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
natali 33 [55]
3 years ago
5

Which are the solutions of x2 = –5x + 8?

Mathematics
1 answer:
Luda [366]3 years ago
4 0

Answer:

  x = -2.5 ± √14.25

Step-by-step explanation:

Add 5x to prepare for "completing the square."

  x² +5x = 8

Add the square of half the x-coefficient:

  x² +5x + 2.5² = 8 + 2.5²

  (x +2.5)² = 14.25

Take the square root.

  x +2.5 = ±√14.25

Subtract 2.5.

  x = -2.5 ± √14.25 ≈ {-6.27492, 1.27592}

You might be interested in
Please help I’m in class
damaskus [11]
The answer is C hope this can help
7 0
3 years ago
8z=4(2z+1) show step by step
Verizon [17]
8z=4(2z+1)
First you would distribute the constant into the numbers in the parentheses. so
8z=8z+4
then you would combine like terms which in this case would result in a zero.
8z-8z=0 So the z would be zero or no solution.
5 0
3 years ago
During a hike, 3 friends equally shared 1/2 pound of trail mix. What amount of trail mix, in pounds, did each friends recieve 1/
AleksandrR [38]

Answer:

0.1666

Step-by-step explanation:

7 0
3 years ago
Need help, please explain the answer
Mkey [24]

Answer:

Step-by-step explanation:

U have to multiply 49 by 49 and then subtract 9

4 0
3 years ago
I need help
Ilia_Sergeevich [38]

Answer:

310

Step-by-step explanation:

A circle is 360 degrees

50 +x = 360

x = 360-50

x = 310

3 0
2 years ago
Other questions:
  • A candle manufacturer sells cylindrical candles in sets of three. Each candle in the set is a different size. The smallest candl
    9·2 answers
  • 2. The sum of the third and the seventh terms
    5·1 answer
  • Find the area of the shaded porrion​
    14·1 answer
  • Explain how place value helps you add decimals
    12·2 answers
  • PLS HELP
    15·1 answer
  • Find m∠1 if m∠2=73°, m∠3=107°, m∠4=92°. Justify your response!
    9·1 answer
  • Help again geometry similarity transformations
    14·2 answers
  • I need help for this. it would be amazing if you drew out the problem <3
    14·2 answers
  • How do we solve the three variable systems
    13·1 answer
  • If yesterday's day after tomorrow is Sunday, what day is tomorrow's day before<br> yesterday?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!