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
natka813 [3]
3 years ago
7

How to factor 5x^2 +4x -1

Mathematics
1 answer:
Kazeer [188]3 years ago
4 0
5x^2+4x-1\\\\Method\ 1:\\\\5x^2+4x-1=5x^2+5x-x-1=5x(x+1)-1(x+1)\\=(x+1)(5x-1)\\\\5x^2+4x-1=(x+1)(5x-1)\\\\Method\ 2:\\\\5x^2+4x-1\\a=5;\ b=4;\ c=-1\\\\\Delta=b^2-4ac\\\\\Delta=4^2-4\cdot5\cdot(-1)=16+20=36 \ \textgreater \  0\\\\x_1=\dfrac{-b-\sqrt\Delta}{2a}\ and\ x_2=\dfrac{-b+\sqrt\Delta}{2a}\\\\\sqrt\Delta=\sqrt{36}=6\\\\x_1=\dfrac{-4-6}{2\cdot5}=\dfrac{-10}{10}=-1\\\\x_2=\dfrac{-4+6}{2\cdot5}=\dfrac{2}{10}=0.2\\\\5x^2+4x-1=5(x-0.2)(x+1)=(5x-1)(x+1)
You might be interested in
What is the solution to the equation 37 x = 9 x + 4 ?<br> -7<br> − 1/7<br> 1/7<br> 7
natali 33 [55]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

let's solve for x ~

  • 37x =  9x + 4

  • 37x - 9x = 4

  • 28x = 4

  • x =  \dfrac{4}{28}

  • x =  \dfrac{1}{7}

5 0
2 years ago
Read 2 more answers
At Judith's Swimwear, 75% of the 72 swimsuit styles are bikinis. How many bikini styles are
poizon [28]

Answer:

54

Step-by-step explanation:

75% of 72 is 54

5 0
3 years ago
Read 2 more answers
What’s in a equation or Leniar function y axis 1 and negative 7 and x axis negative 3 and 1
Elodia [21]

A linear function is an algebraic equation in which each term is either a constant or the product of a constant and (the first power of) a single variable. For example, a common equation,  

y

=

m

x

+

b

, (namely the slope-intercept form, which we will learn more about later) is a linear function because it meets both criteria with  

x

and  

y

as variables and  

m

and  

b

as constants.  It is linear: the exponent of the  

x

term is a one (first power), and it follows the definition of a function: for each input (

x

) there is exactly one output (

y

).  Also, its graph is a straight line.

5 0
3 years ago
When Morgan's dad returned from the store, he went for a jog. He jogged for 1 hour and 15 minutes at a pace of 4.8 miles per hou
alisha [4.7K]
1 hour and 15 mins
60mins=1hr
15/60=1/4

1hr and 15mins=1 and 1/4hr or 1.25hr

1.25 times 4.8=6

jogged 6 miles
6 0
3 years ago
What two products do you get when you cross-multiply the fractions 2/5 and 3/8?
jarptica [38.1K]
Answer: a. 10 and 12

explanation:
4 0
3 years ago
Other questions:
  • Ann needs 42feet of fabric to make a small quilt how many yards of fabric should she buy?
    10·2 answers
  • If 3 is added to twice a number and this sum is multiplied by 6​, the result is the same as if the number is multiplied by 5 and
    5·1 answer
  • Determine which of the following are functions. Select all that apply. A 2-column table with 5 rows. Column 1 is labeled x with
    8·2 answers
  • The slope of the line whose equation is x + y = 6 is: -1 1 6
    12·1 answer
  • Ms. Ayala had 152 pencils. She divided the numbers of pencils equally among 13 students. What is the greatest numberof pencils M
    13·2 answers
  • HELP PLEASE I HAVE 10 MINS
    11·1 answer
  • loren wants to buy a golf club that is $98 today it is on sale for 25% off how much is the discount and what is the sale price
    6·1 answer
  • Can anyone help me with this I need help
    10·1 answer
  • Please help pls pls pls plssss
    6·2 answers
  • Name the marked angle in 2 different ways.<br> N<br> M<br> L<br> K
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!