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
astra-53 [7]
3 years ago
11

Solve the equation 5x-2x^2+1

Mathematics
1 answer:
Pani-rosa [81]3 years ago
5 0

Answer:

Step-by-step explanation:

If you call "5x-2x^2+1" an "equation," then you must equate 5x-2x^2+1 to 0:

5x-2x^2+1 = 0

This is a quadratic equation.  Rearranging the terms in descending order by powers of x, we get:

-2x^2 + 5x + 1 = 0.  Here the coefficients are a = -2, b = 5 and c = 1.

Use the quadratic formula to solve for x:

First find the discriminant, b^2 - 4ac:  25 - 4(-2)(1) = 25 + 8 = 33

Because the discriminant is positive, the roots of this quadratic are real and unequal.

                                                             -b ± √(discriminant)

Applying the quadratic formula   x = --------------------------------

                                                                         2a

we get:

      -5 ± √33           -5 + √33

x = ----------------- = --------------------- and

           2(-2)                     -4

                                  -5 - √33

                                 ---------------

                                         -4

You might be interested in
9.
LenaWriter [7]
The answer is A, y = (x+3)^2 -3
4 0
3 years ago
Read 2 more answers
Write the statement for him a f(n).​
Effectus [21]

Answer:

180f + 23(n)

Step-by-step explanation:

just make an equation

7 0
3 years ago
HELPPPPP ASAPPPPPP!!!!! PLZZZZZ!!!!
BlackZzzverrR [31]
The answer would be horizontal reflection because it has been reflected over a horizontal line. Hope this helps :-)
8 0
2 years ago
Read 2 more answers
What would be 80.9 km to cm
tatyana61 [14]

Answer:

80.9 kilometres =

8090000 centimetres

Length

80.9

kilometre

8090000

Centimeter

3 0
3 years ago
A bag contains 5 red balls and 6 green balls. You plan to select 2 balls at random. Determine the probability of selecting 2 gre
Umnica [9.8K]

Step-by-step explanation:

first pick has probability

\frac{6}{11}

second pick has probability

\frac{5}{10}

combined probability is

\frac{30}{110}  =  \frac{3}{11}

7 0
3 years ago
Other questions:
  • Amelia earned $60 for 5 hours of work. What is the unit rate of Amelia's earnings in dollars per hour?
    12·2 answers
  • You roll a single die numbered from 1 to 6. What is the probability of rolling a number greater than 3 and then a number less th
    15·1 answer
  • Carl cut two triangles boards from the corners of a rectangular board as shown
    11·2 answers
  • Evaluate this exponential expression. 3 • (5 + 4)2 – 42 =
    15·2 answers
  • An item is priced at $14.45. If the sales tax is 5%, what does the item cost including sales tax?
    8·2 answers
  • Calculate the number of vertices in a full 5-ary tree with 35 internal vertices.
    9·1 answer
  • A pole that is 12 feet tall casts a shadow
    11·1 answer
  • Blank minus 1/2 equals 3/4​
    12·1 answer
  • Select the correct answer.
    8·1 answer
  • 5<br> Write the ratio<br> 6<br> in another way.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!