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
s344n2d4d5 [400]
3 years ago
9

Select the two values of x that are roots of this equation. 3x-5=2x^2​

Mathematics
2 answers:
Korolek [52]3 years ago
7 0

Solution:

3x - 5 = -2x²

2x² + 3x - 5 = 0

<em>By splitting the middle term,</em>

2x² - 2x + 5x - 5 = 0

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

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

So, 2x + 5 = 0

<em>x = -5/2</em>

(OR)

x - 1 = 0

<em>x = 1</em>

The roots of <em>2x² + 3x - 5 = 0</em> are: A. x = 1 & B. x = -5/2

wlad13 [49]3 years ago
4 0

Step-by-step explanation:

3x - 5 =  -  {2x}^{2}

➡

{2x}^{2}  + 3x - 5 = 0

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

one of these multiple should be 0 so the equation is equal to 0

therefore if 2x + 5 = 0 then

x = -5/2

and if x+1 = 0 then

x = 1

You might be interested in
4 % of blank days is 56 days
klasskru [66]
We have an equation: 56/? = 4/100

Cross multiply:
4*? = 56*100
⇒ ? = 56*100/4 = 1,400

There are 1,400 blank days~
8 0
3 years ago
Read 2 more answers
What is the approximate area of a circle with a radius of 10 in?
yKpoI14uk [10]

<em></em>\huge\boxed{\textsf{A.}\ 78.5\ \text{in}^2}

<em></em>

<em>Correction to your question text: diameter, not radius.</em>

The area of a circle is given by:

A=\pi r^2

The radius is half of the diameter.

A=\pi\cdot\left(\dfrac{10}{2}\right)^2

Substitute and solve.

\begin{aligned}A&=\pi\cdot\left(\frac{10}{2}\right)^2\\&=\pi\cdot5^2\\&=\pi\cdot25\\&\approx\boxed{78.5}\end{aligned}

5 0
1 year ago
Brian is solving the equation x squared minus three-fourths x = 5. What value must be added to both sides of the equation to mak
Allushta [10]

Answer:

  StartFraction 9 Over 64 EndFraction

Step-by-step explanation:

He must add the square of half the x coefficient. That coefficient is 3/4, so half of it is 3/8 and the square of that is ...

  (3/8)^2 = 9/64

Brian mus add 9/64 to boths sides of the equation.

6 0
3 years ago
Read 2 more answers
3x+18x+5x-2=180<br>what is the angle measurement for:<br>3x,18x,and 5x,-2?<br>​
lozanna [386]

Answer:

3x = -18 (x = -6)

18x = 108 (x = 11)

5x = 90 (x = 18)

Step-by-step explanation:

7 0
2 years ago
What is the sqare root of 12
nasty-shy [4]

Answer:

3.46 but if you simplify it is 3.5

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • Rearrange the equation so xxx is the independent variable.
    10·2 answers
  • NEED NOW PLEASEE
    8·1 answer
  • PLEASE HELP ME!!!!!
    11·2 answers
  • At a department store, Kendra has a debt greater than $25.00. Which could be Kendra’s balance? A.Negative 32 dollars B.Negative
    12·1 answer
  • A box has eight balls. There are five green balls and three yellow. The five green balls are numbered 1 ,2,3,4 ,and 5. The three
    11·1 answer
  • 5 cm<br> 5 cm<br> 3 cm<br> 14 cm<br> Volume:<br> includnite fem) in vour answer.
    12·2 answers
  • At the school bookstore, pencils cost $1 29 each, erasers cost $2.55 each, rulers cost 3 52 each and a pack of twelve pens costs
    9·1 answer
  • What is the name of the shape depicted in the graph below?
    12·2 answers
  • Hellooooooooo im just bored and just to get yall some pointss whats : <br><br><br> 3x4= ?
    6·2 answers
  • X^2+y^2=169, 3x+2y=39 please answer using substitution and each step
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!