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
FromTheMoon [43]
3 years ago
5

How do you solve it?

Mathematics
1 answer:
MatroZZZ [7]3 years ago
8 0

Answer:

<em>i: </em>x=-2, x=1

<em>ii: </em>x=-1/2

Step-by-step explanation:

Quadratic form:

You solve <em>i </em>by using FOIL (First, Outside, Inside, Last) because it is a multiplication problem.

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

<em>"first"</em> would be x*x, which would equal x^{2}

<em>"outside"</em> would be x*-1, which would equal -1x, or -x

<em>"inside"</em> would be 2*x, which would equal 2x

<em>"last" </em>would be 2*-1, which would equal -2

Now you need to combine the terms so that they are one after the other

x^{2}-x +2x-2

Combine like terms, and you should get:

x^{2} +x-2

i Solution

<em>You need to get the variable by itself.</em>

<em>Subtract two from both sides</em>

x+2=0\\x=-2

<em>Add one to both sides.</em>

x-1=0\\x=1

ii Solution

<em>Add all the terms.</em>

x+2+x-1=0\\2x+1=0\\2x=-1\\x=-\frac{1}{2}

You might be interested in
I'd appreciate it if anyone could help ASAP. I'm giving Brainliest!
n200080 [17]

Answer:

(1, 0.25)

Step-by-step explanation:

To find when f(x)=g(x), then look for a value that is the same for both functions in the table. 0.25 occurs twice for the same x value. This is when they are equal. The solution is (1, 0.25).

7 0
3 years ago
Jessie works at a car manufacturing plant. One day she installed a total of 46 axles, 2 in each car she worked on. She wants to
shtirl [24]

Answer:

<h2>             23 cars</h2>

Step-by-step explanation:

total number of cars:    x

the total number of axles:    46

and the number of axles  installed per car:   2

2 axles in each car, then total instaled axles:  2•x

2•x = 46

x = 46÷2

x = 23

5 0
3 years ago
PLEASE HELP !! ILL GIVE BRAINLIEST !!
kiruha [24]

Answer:the first one opn and qps

Step-by-step explanation:

8 0
2 years ago
Need help please !!!!!<br><br> Will mark as brainliest!!!!<br><br> (Don’t mind my answers)
Alika [10]

Answer:

Can you give me the choices for each of these, I'm not sure how they might phrase it.

3 0
2 years ago
Which point is an x-intercept Og the quadratic function f(x) = (x-4)(x+2)?
user100 [1]
<span>(-6,0) would be correct </span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • i don't understand how to make it into a graphing form? how do you find the center and radius? (I'm confused because it has a 4x
    5·1 answer
  • Gwen borrowed $20 from her mother to buy a scarf. Then, she went to her favorite department store and charged a pair of boots fo
    9·1 answer
  • The circle below has center O, and its radius is 4 ft. Given that m ZAOB=50°find the length of the minor arc AB.
    10·1 answer
  • -2 +2-3(x-4) Complete the missing value in the solution to the equation
    7·1 answer
  • A student said that the surface area of the figure below was 57.4 square centimeters. Is the student correct? Explain.
    8·1 answer
  • Divya is organizing a training for two different seminars, one for teachers and one for mechanics. She has a total of 132 pens a
    10·1 answer
  • Reduce this fraction 69/81? It can be done but used in another question.
    5·1 answer
  • PLISSSSSS HELP!!!!!!!!!!!!! <br> i will give brainliest.....
    11·1 answer
  • Factor Trinomials:
    13·1 answer
  • 2.5(x + 4) = 5 what is the value of x
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!