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
Sunny_sXe [5.5K]
3 years ago
13

Which is a solution to the equation? (x −2)(x + 5) = 18

Mathematics
2 answers:
Alik [6]3 years ago
5 0
(x-2)(x+5)=18
x²+3x-10=18
Subtract 18 to each side
x²+3x-10-18=18-18
x²+3x-28=0
x²+7x-4x-28=0
x(x+7)-4(x+7)=0
(x-4)(x+7)=0

x-4=0
Add 4 to each side
x-4+4=0+4
x=4

x+7=0
Subtract 7 to each side
x+7-7=0-7
x=-7. As a result,the solutions to this equation are 4 and -7. Hope it help!
kifflom [539]3 years ago
4 0
Well if finding X you get 4,-7 when you simplify the whole equation you get that as well.
You might be interested in
Answer questions 10 and 11 based on the information below.
ollegr [7]

Answer:

10. As the temperature increases the number of people increases.

Step-by-step explanation:

Because its better to go to a pool when its hot.

sry i dont know 11 :(

5 0
3 years ago
Read 2 more answers
NEED HELP ASAP GIVING BRAINLIST!!!!!
lbvjy [14]

Answer:

Top left: x^2 +8x +15

Top right: x^2 +3x -18

Bottom left: x^2 -3x -18

Bottom right: x^2 -10x +16

Step-by-step explanation:

6 0
3 years ago
The record low for Florida is 2 degrees below zero Fahrenheit and was set on February 13, 1899. The record high is 109 degrees F
jarptica [38.1K]

Answer:

-2 and 109

Step-by-step explanation:

just put that

4 0
3 years ago
Read 2 more answers
Which of the following statements about trapezoids is true?? (Help asap) !!!!!!
vampirchik [111]
It is suppose to be letter d

5 0
3 years ago
3. Convert 0.002 kilojoules to decijoules:
k0ka [10]

Answer:

20 is the answer.

5 0
3 years ago
Read 2 more answers
Other questions:
  • A population, with an unknown distribution, has a mean of 80 and a standard deviation of 7. for a sample of 49, the probability
    14·1 answer
  • Suppose you are trying the test hypothesis
    8·1 answer
  • I need help on this one please
    13·1 answer
  • Write each ratio in simplest form.1.1.4/7
    7·1 answer
  • (X-4) (x+2)=16 <br> What’s the standard form
    7·2 answers
  • PLEASE HELP<br> Find the range of f(x) = -3x + 2 for the domain {-3, 1, 2,5}.
    6·1 answer
  • Just tell me if these soccer balls show a reflection. Its for a math assignment i just need to know if this shows a reflection
    14·2 answers
  • What is the value of the expression 3-4 x 3-5<br> x
    10·1 answer
  • PLZ HELP I NEED TO PASS MATH LOL, What is the value of the expression (−10)(−7)? Enter your answer in the box.
    5·1 answer
  • Point giveaway. Answer something random and you will get 17 points.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!