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
erik [133]
3 years ago
8

Please help with 1 Math question!!!

Mathematics
1 answer:
musickatia [10]3 years ago
6 0

For this case we must solve the following quadratic equation:

x ^ 2-5x-8 = 0

We use the quadratic formula to find the solutions:

x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}

Where:

a = 1\\b = -5\\c = -8

Substituting we have:

x = \frac {- (- 5) \pm \sqrt {(- 5) ^ 2-4 (1) (- 8)}} {2 (1)}\\x = \frac {5 \pm \sqrt {25 + 32}} {2}\\x = \frac {5 \pm \sqrt {57}} {2}

In this way we have two roots:

x_ {1} = \frac {5+ \sqrt {57}} {2}\\x_ {2} = \frac {5- \sqrt {57}} {2}

Answer:

x_ {1} = \frac {5+ \sqrt {57}} {2}\\x_ {2} = \frac {5- \sqrt {57}} {2}

You might be interested in
Plz will give brainlest if do all only answer if do all too thanks
hoa [83]

Answer:

sorry but i cant see what you have can you try again?

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Explain how you simplfy 5(4i - 3m) + 2m
Galina-37 [17]

Answer:

20i - 13m. look at the picture

5 0
3 years ago
Please can someone solve this​
Leni [432]

Answer:

45

Step-by-step explanation:

2a+3b=15, multiply everything by 3

3(2a+3b)=3(15)

6a+9b=45

7 0
3 years ago
1/2 x^3 = 125/2 <br> x=-5?
vlada-n [284]

ANSWER:

125/2 =125/2

PROVED

STEP BY STEP EXPLANATION

PUTTING THE VALUE OF X, WE HAVE

1/2×5×5×5=125/2

1/2×125=125/2

125/2=125/2

HENCE ,L.H.S =R.H.S

PROVED.

HOPE THIS WILL HELP YOU

3 0
3 years ago
Please help, i will mark brainliest
astra-53 [7]

Answer:

hm i can help with  that

3 0
3 years ago
Read 2 more answers
Other questions:
  • 1. From the statement select the related given statement.
    14·2 answers
  • What is the area of this figure?
    11·1 answer
  • HELPPPPPPP!!!
    6·1 answer
  • Someone help me please! with questions 1-4 , geometry is not my strong suit
    9·1 answer
  • !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    8·1 answer
  • The best description of a dilation of a figure is?
    6·1 answer
  • Graph the funtion f(x) = <img src="https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7Bx%20-%202%7D" id="TexFormula1" title="\sqrt[3]{x - 2
    5·1 answer
  • 4) Which linear inequality represents the solution set graphed?
    12·1 answer
  • FREEEEEEE POINTSSSSSSSSSSSSSSSSSSSSSSS
    10·2 answers
  • How do you convert the decimal 0.24 to fraction in the simplest form
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!