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
leva [86]
3 years ago
10

What is the solution set of 2x 2 - 3x = 5?

Mathematics
2 answers:
lidiya [134]3 years ago
8 0

Answer:

Given the equation:

2x^2-3x=5

Subtract 5 from both sides we get;

2x^2-3x-5 = 0

Factorize the equation:

Break the middle term we get;

2x^2-5x+2x-5 = 0

⇒x(2x-5)+1(2x-5)=0

Take (2x-5) common we have;

(2x-5)(x+1) = 0

By zero product property we have;

2x-5 = 0   or x+1 = 0

⇒x = \frac{5}{2} or x = -1

Therefore, the solutions for the given equation are:

\frac{5}{2}, -1

katovenus [111]3 years ago
6 0
You use the quadratic formula:
2x {}^{2} - 3x = 5
2x {}^{2} - 3x - 5 = 0
x = \frac{3 + - \sqrt{9 -4(2)( - 5)}}{2 \times 2}
x = \frac{3 + - \sqrt{49} }{4}
x = \frac{3 + 7}{4} \: and \: x = \frac{3 - 7}{4}
x = \frac{5}{2} \: and \: x = - 1

You might be interested in
Plz help idk what this is even about
AysviL [449]

I think the answer is A.

It's probably wanting you to use pythagorean theorem.

6 0
3 years ago
Please help me answer it​
jeka94

Answer:

i dont know toooo pls answer it fast......................................

Step-by-step explanation:

i need it..........................

3 0
3 years ago
Find the exact value of tan(theta) for an angle (theta) with sec(theta) = 3 and with its terminal side in Quadrant I.
stiks02 [169]

Answer:

c

Step-by-step explanation:

1 + tan²theta = sec²theta

tan²theta = 3² - 1

tan²theta = 8

tan theta = sqrt(8)

Positive because Quadrant 1

sqrt(8) = sqrt(4×2) = sqrt(4)×sqrt(2)

= 2×sqrt(2)

3 0
3 years ago
Help me please,Thanks
Monica [59]
If you did the math it is obvious that the answer is 20%
4 0
4 years ago
Read 2 more answers
Find the unknown sizes of angles in the following figure:​
8090 [49]

Answer:

angle x is 86

angle y is 38

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • The brand manager for a brand toothpaste must plan a campaign designed to increase brand recognition. He wants to first determin
    9·1 answer
  • Dan bought a new house with a backyard whose dimensions are 21.8 by 12 feet. The backyard has a triangular garden with an area o
    10·1 answer
  • A dog on intravenous fluids has received 40% of the 1000 mL initially in the i.v. bag. How many mL has it received?
    6·2 answers
  • What is the geometric mean of 4 and 3? Your answer should be a reduced radical, NOT A DECIMAL.
    7·1 answer
  • What is GC? <br> I need help Please!
    10·1 answer
  • What is the domain of the relation graphed below?
    5·2 answers
  • Solve for x:<br> 4(1 – x) + 2 x = -3( x + 1)
    6·2 answers
  • +3=17
    13·1 answer
  • Help solve this problem please?
    6·1 answer
  • Factor problems 9 - 12 by using the difference of squares method.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!