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
liberstina [14]
3 years ago
15

Factorise x^2 + 3x -40

Mathematics
1 answer:
Pavel [41]3 years ago
4 0
Notice, all we do is "prime factor" 40, and use the factors about to add them and get the middle coefficient of 3, and since they're factors, their product will give us 40 back.

\bf x^2\stackrel{8-5}{+3}x\stackrel{(8)(-5)}{-40}\implies (x+8)(x-5)
You might be interested in
When 4 times the number X is added to 12, the result is 8. What number results when two times x is that at 7?
kow [346]
I think you worded that a little wrong
8 0
4 years ago
Convert 3 18/25 to a decimal using long division. A) 0.72 B) 1.38 C) 3.72 D) 3.85
DerKrebs [107]
The correct answer is c. 3.72. Sorry for the confusion
6 0
3 years ago
Read 2 more answers
A new car is for lease for $192 per month for 36 months, with a down payment of $358. the lease allows for 12,000 miles per year
Natalija [7]

Answer:

2 733.25 + 7270 = 10 003.25

Step-by-step explanation:

192 * 36 = 6 912 +358 = 7 270

45425 - 36000 ( allowed miles for 3 years )

9 425 * 0.29 = 2 733.25

8 0
2 years ago
A bottle of laundry detergent costs $4.95 per bottle. If you have a coupon for $2.00 off and your total is $7.90, how many bottl
RoseWind [281]
You bought 2 because if you add $7.90 and $2.00 the coupon you would get $9.90 so then you multiply $4.95 by 2 and you get $9.90 the exact amount we had before
8 0
3 years ago
Denise is selling roses. She sold 3 for $5 and 5 for $7. What will Denise charge for 12 roses if she keeps selling roses at the
Vlada [557]

Answer:

14$

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
Other questions:
  • What value of x is in the solution set of 8x-6 &gt; 12 + 2x?<br> 3<br> 5
    8·1 answer
  • Write the first three terms in the binomial expansion, expressing the result in simplifies form. (2x+3y)^8.
    10·1 answer
  • Find the inverse laplace transform of: (2 s + 4) / (s - 3)^3
    15·1 answer
  • What is √6 over √5 in simplest radical form
    9·1 answer
  • A statement and portions of the flowchart proof of the statement are shown. Which statement should appear in the box labeled 1?
    8·2 answers
  • Stuck on this problem can someone help
    9·2 answers
  • Find the value of x in the isosceles triangle shown below.<br> 52<br> V52<br> 2
    6·1 answer
  • 1,2,3 or 4?<br><br> Look at the picture. <br> Thank u!
    7·1 answer
  • Select the graph that does not represent two quantities in a proportional relationship.
    7·1 answer
  • For an increase of 1 in the x-value, what is the increase in the y-value?.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!