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
ANEK [815]
3 years ago
8

Factor the polynomial by grouping 7x2+16x-15

Mathematics
1 answer:
Alika [10]3 years ago
7 0
16x can be broken down into factors of -105.
21 and -5 come to mind.

7x² + 21x - 5x - 15
7x(x + 3) - 5(x + 3)
(7x - 5)(x + 3) is the factorised form.
You might be interested in
An item is regularly priced at 90$. Itis now priced at a discount of 30% off the regular price. What is the price now ?
frez [133]
If ur getting 30% off, then ur paying 70%
70% of 90...

0.7(90) = 63 <== discount price
8 0
4 years ago
Read 2 more answers
Suppose that in a certain sinkhole the ground dropped 76.8 ft in 24 hour. Find the unit rate representing the change in altitude
svetlana [45]

Answer:i dont know

Step-by-step explanation:

7 0
3 years ago
Can someone explain to me what a “derivative” means? How do you find the derivative of f(x)=x^3+1?
Ostrovityanka [42]
The derivative is the rate of change of a function, basically represents the slope at different points. To find the derivative of the given function you can use the power rule, which means, if n is a real number, d/dx(x^n)= nx^(n-1). This is a simplification of the chain rule based on the fact that d/dx(x)=1. Anyway, this means that d/dx(x^3 + 1)= 3x^2. Here n is 3 and so it is 3*x^(3-1)= 3x^2. The derivative of x^3+1 is 3x^2.

If you are wondering what happened to the 1, for any constant C, d/dx(C)=0.
4 0
3 years ago
There are 14 books on a shelf. 6 of these books are new.
Alexxandr [17]

a) 8:14

b) 6:8

yeah its telling me I'm short of words

3 0
3 years ago
Read 2 more answers
I have a math question that im stuck on 2 - 2x ≥ x + 66
kakasveta [241]

Answer:

x is less than or equal to 64/-3

8 0
3 years ago
Other questions:
  • If the diameter of the circle is 11 inches, then the radius will be _____ inches.
    12·1 answer
  • How to solve q =r/2(s+t) for t
    5·1 answer
  • How do i measure the bounce height of a tennis ball released from a height of 150 cm?​
    9·1 answer
  • Please help i dont understand
    7·1 answer
  • Among the 2,598,960 possible five card poker hands from a standard 52 card deck, how many contain at least one spade?
    11·1 answer
  • Midpoint(-5,-20) and endpoint (-1,-11) Find other endpoint
    10·1 answer
  • What is the equation 3y – 6x = 9 written in the form y=mx+b ?
    11·1 answer
  • A store is selling a pair of jeans for $60.00. If this price included a markup of 25%,what did the store originally pay for the
    12·2 answers
  • Need help to do this step by step please <br> 3x2 - 2x=-1
    11·1 answer
  • Any helppp pLeAsE? T^T
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!