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
Ann [662]
3 years ago
5

Factorise 14x^2 - x - 3

Mathematics
2 answers:
Makovka662 [10]3 years ago
7 0
(7x+3)(2x-1)
you have to find the multiples of -3 that when added will give the middle term

nirvana33 [79]3 years ago
6 0
14x² - x - 3 = 0
14x² - 7x + 6x - 3 = 0
-7x(-2x + 1) -3(-2x + 1) = 0

(-7x-3) & (-2x+1) = 0

Roots: -7x - 3 = 0
-7x = 3
x = -3/7

OR -2x + 1 = 0
-2x = -1
x = 1/2

In short, Your Roots would be 1/2 and -3/7

Hope this helps!
You might be interested in
John is going on a trip and the country he is traveling to uses the Celsius scale. He is curious about converting Celsius temper
Setler79 [48]

Answer:

f(x)=\dfrac{9}{5}x+32 converts Celsius to Fahrenheit.

g(x)=\dfrac{5(x-32)}{9} converts Fahrenheit to Celsius.

Step-by-step explanation:

Write given data in the table

\begin{array}{cc}x&f(x)\\^{\circ}\text{C}&^{\circ}\text{F}\\20&68\\30&86\end{array}

Let the expression for the function be

f(x)=ax+b

Note, that this equation is linear equation and it is well-known fact that the Celsius to Fahrenheit dependence is linear.

Substitute corresponding values into this expression:

68=20a+b\\ \\86=30a+b

Subtract these two equations:

86-68=30a-20a\\ \\10a=18\\ \\a=\dfrac{9}{5}

Substitute it into the first equation:

68=20\cdot \dfrac{9}{5}+b\Rightarrow b=68-36=32

So,

f(x)=\dfrac{9}{5}x+32

This is the function which converts Celsius to Fahrenheit.

And function

g(x)=\dfrac{5(x-32)}{9} converts Fahrenheit to Celsius.

4 0
3 years ago
Read 2 more answers
How do you write the equation of a line and stop intercept form from that passes through the point -3, 5
mr_godi [17]
Y=2/3x -5/2

Slope is equal to the parallel line (2/3)
Find y intercept by setting y and x equal the given coordinates and solve.
8 0
3 years ago
PLEASE HELP ME!! #4 Suzan took out a $700 loan from the bank. At the end of 5 years, she pays back the principal, plus $105in si
Veseljchak [2.6K]

Answer:

3%

Step-by-step explanation:

105 = 700 x r x 5

r = 105 / ( 700 × 5 ) = 0.03

r = 0.03

0.03 in percent is 3%

3 0
2 years ago
Rosc has $500 in her savings account. She carnis simple interest at 5%
Firlakuza [10]

Answer:

50

Step-by-step explanation:

I assume you are asking how much she EARNS after 2 years.

500x.-5=25 interest per year

25 x 2 years = 50 interest for 2 years.

5 0
2 years ago
Simplify the expression. <br><br> 2.5 – 3.1 – 3.86 + 2.7 – 4.01
earnstyle [38]
2.50 - 3.10 - 3.86 + 2.70 - 4.01 =
-6.30
So; the answer is -6.30.
4 0
3 years ago
Other questions:
  • Use properties to find the sum or product 89 +27+11
    6·2 answers
  • Line go passes through points (2,5) and (6,9) which equation represents line gh
    6·1 answer
  • Maria, Hans, and Dan have a total of $95 in their wallets. Dan has 3 times what Hans has. Hans has $10 more than Maria. How much
    11·1 answer
  • The Millers plan on retiring soon. When they were first married they purchased 1,000 shares in a mutual fund that was at that ti
    12·1 answer
  • What is 1/2 divided by 3/2 equals out to be in fraction form?
    13·1 answer
  • A robot can complete 4 tasks in 3/5 hour. Each task takes the same amount of time. a. How long does it take the robot to complet
    7·2 answers
  • Your family's car can hold 20 gallons of gas. If you use .5 gallons of gas a day, how many gallons do you use in 10 days
    5·1 answer
  • In a national park the distance between the base of two cliffs is 312 feet . The angle of elevation from the base of the shorter
    10·1 answer
  • Jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj<br>kkkkkkkkkkkkkkkkkkkkkkkkkk
    5·2 answers
  • Does anybody know what 3x5 is?? i forgot lol
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!