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
lesya [120]
3 years ago
9

Which expression is a factor of x^2 + 2x – 15?​

Mathematics
1 answer:
Ksju [112]3 years ago
7 0
To factor this you need values that add up to 2 and multiply to -15

So you get 5,-3 then you put it into your equation for you b value

X^2+5x-3x-15

Then you can factor by grouping

X(x+5)-3(x+5)

So your factors are

(X+5)(x-3)
You might be interested in
What is 124 decreased by 67%
inysia [295]

Answer:

40.92

Step-by-step explanation:

hope this helps

5 0
3 years ago
Read 2 more answers
Is y=1x3 a Proportional or a Non-Proportional
Bas_tet [7]

Answer:

 proportional graph is a straight line that always goes through the origin. A non-proportional graph is a straight line that does not go through the origin.

Step-by-step explanation:

3 0
3 years ago
How do u get really smart
Kay [80]
Haha, there isn't a thing that makes you 'really smart'. 

However, you can grow and improve your knowledge.

The more challenging material you expose yourself to, while putting in the effort to solve them, there's no doubt you'll definitely improve!

+ you can try exercising your brain every now and then by playing trivia games or reading books- do whatever interests you and helps you learn!
6 0
3 years ago
Read 2 more answers
What is the sum of the difference?
Alona [7]

Answer:

A. 9x^4 and 3x^5y

Step-by-step explanation:

there are two ways to solve this:

first way:

You can solve this my substituting numbers for x and y in this case i used 2 for x and 3 for y and see which one is equal to the original equations

the second way is the regular way

when you add or subtract numbers with variables and exponents you want to add the constants and add the exponents in this case 5x^{4} +4x^2 is the same as (5x+4x)^(4+4) = 9x^4and you can do the same process for subtraction

12x^{5}y-9x^5 y\\(12x-9x)^(5+5)*y= 3x^5y

8 0
3 years ago
Is 5 equal to -5 in math
elena-14-01-66 [18.8K]

Answer: No

Step-by-step explanation: If it is talking about the reciprocal then yes. Reciprocal is the opposite of your number.

Example: -4 IS 4 reciprocal.

6 0
3 years ago
Read 2 more answers
Other questions:
  • The sum of a two digit number is 18. If the digits are reversed, the number remains the same. Find the number.
    7·1 answer
  • If f(x) = 2x - 6 and g(x) = 3x+ 9, find (i - g)(x).
    10·2 answers
  • 8. A rectangle has a width of 5 inches and a length of 7 inches. If
    6·1 answer
  • Stacy bought a skateboard at a local sporting goods store. The skateboard was on sale for 10% off the original price. The store
    15·1 answer
  • At work, you are calculating the cost of insulation for a customer. The customer would like to install his own insulation in an
    5·1 answer
  • Factorize x^2+3x-ax-3a​
    10·1 answer
  • I’m posting too many<br><br><br> Solve each equation 51/2=d +1/4 what is d?
    11·1 answer
  • Can someone help me Write an equation for this graph?
    13·1 answer
  • How do you solve?<br> 2.5 x 1/4=
    8·1 answer
  • Which of the following points lies on the line?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!