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
krek1111 [17]
2 years ago
10

B) 2x² - 4x + 3 = 0 a) x² + 3x – 10 = 0

Mathematics
1 answer:
kozerog [31]2 years ago
3 0

Answer:

a. x = 2 , x = -5

b. no real roots

Step-by-step explanation:

<u>a. x² + 3x – 10</u>

= x² - 2x + 5x - 10

= x (x²/x - 2x/x) + 5 (5x/5 - 2*5/5)

= (x - 2) (x + 5)

x - 2 = 0                            x + 5 = 0

 + 2    +2                             -5     -5

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

x = 2                                   x = -5

x = 2 , x = -5

<u>b. 2x² - 4x + 3 </u>

This can't be solved because the equation has no real roots, and also the discriminant is negative.

You might be interested in
Please Helpp Mee! I need it NOW!
lyudmila [28]

Answer:1st one 2nd one and 8th

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
If f(x) = x 2 + 1 and g(x) = 3x + 1, find [f(2)-g(1)] 2.<br><br> 1<br> 2<br> 9
uysha [10]
(2)2+1=5

3(1)+1=4 is your answer


5 0
3 years ago
Write each Percent as a decimal and as a mixed number or fraction in simplest form
sveticcg [70]

p\%=\dfrac{p}{100}\\\\225\%=\dfrac{225}{100}=2\dfrac{25}{100}=2.25=2\dfrac{1}{4}\\\\550\%=\dfrac{550}{100}=\dfrac{55}{10}=5\dfrac{5}{10}=5.5=5\dfrac{1}{2}\\\\0.8\%=\dfrac{0.8}{100}=\dfrac{0.8\cdot10}{100\cdot10}=\dfrac{8}{1,000}=0.008=\dfrac{1}{125}\\\\0.06\%=\dfrac{0.06}{100}=\dfrac{0.06\cdot100}{100\cdot100}=\dfrac{6}{10,000}=0.0006=\dfrac{3}{5,000}

6 0
3 years ago
What is an equivalent ratio to 8:20 and<br> 2:5?
coldgirl [10]

Answer:

4:10.

Step-by-step explanation:

4:10 would be one.

5 0
3 years ago
W hich of the following are you not likely to see on a graph? dependent variable, units, independent variable, prediction ...?
nekit [7.7K]
"Prediction" is the one among the following choices given in the question that you are not l<span>ikely to see on a graph. The correct option among all the options that are given in the question is the fourth option or the last option. I hope that this is the answer that has actually come to your desired help.</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • If x-5=2 then find the value of 6x-20
    10·2 answers
  • 8. 2x2 + 3x when x = 3​
    8·2 answers
  • What does A = and what does B =​
    15·2 answers
  • Find m of ZX<br> in circle P.<br><br> 70<br> 95<br> 155<br> 205
    9·1 answer
  • Park rangers released 4 fish into a pond,
    7·1 answer
  • Find the area of the triangle to the nearest tenth . Pleaseeee help
    5·1 answer
  • Mr. Falcone's pizza shop offers three sizes of pizza. The
    5·1 answer
  • Sophie spends a winter day recording the temperature once every three hours for science class. At 9 am, the temperature was -8.6
    6·2 answers
  • Divide and answer in simplest form 1/3 ÷ 5<br> A)1/15<br> b)15/1<br> C)3/5<br> D)5/3
    14·1 answer
  • Can anyone answer this for me?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!