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
Ilya [14]
3 years ago
10

What are the zeros of the polynomial function f(x)=x^3-2x^2-8x?

Mathematics
1 answer:
Rashid [163]3 years ago
3 0

Answer: -2, 0, 4

Set the equation equal to zero.

x³ - 2x² - 8x = 0

Factor out x in the equation, since all the terms (x³, -2x², and -8x) are divisible by x. You can check your accuracy using the Distributive Property.

x(x² - 2x - 8) = 0

Factor out the polynomial. To do this, find two numbers that multiply to get the last term, -8, and add together to get the middle term, -2. In this case, those two numbers are -4 and 2 (-4 × 2 = -8 and -4 + 2 = -2). Don't forget about the x that was factored out before!

x(x - 4)(x + 2) = 0

Set each factor equal to zero and solve for x. The factors in the equation are x, (x - 4), and (x + 2).

  • x = 0
  • (x - 4) = 0

        x = 4

  • (x + 2) = 0  

        x = -2

The zeros of the polynomial function are -2, 0, and 4.

You might be interested in
Choose the numbers below that are perfect squares between 9 and 81.<br> 24<br> 36<br> 48<br> 64
diamong [38]

36 and 64 is your answer sir

8 0
3 years ago
10-11d&gt;-5d-4 show step by step
aliya0001 [1]
The first step for solving this is to move the variable to the left side and then change its sign.
10 - 11d + 5d > - 4
Now move the constant to the right side and change its sign.
-11d + 5d > -4 - 10
Collect the terms with a d variable.
-6d > -4 - 10
Calculate the difference on the right side.
-6d > -14
Lastly,, divide both sides of the inequality by -6 and flip the inequality sign to find your final answer.
d < \frac{7}{3}
Let me know if you have any further questions.
:)
4 0
3 years ago
At the market, Meyer buys a bunch of bananas for $0.65 per pound and a frozen pizza for $4.99. The total for his purchase was $6
deff fn [24]

Answer:

Meyer bought 3 pounds of bananas

Step-by-step explanation:

6.94-4.99= 1.95

1.95 is how much spent on bananas, I know that bananas are .65 cents a pound so,

1.95/.65= 3

4 0
2 years ago
Yesterday's afternoon temperature was 21°F. It plunged overnight to -3°F. How many degrees did the temperature drop? A) 3° B) 18
LiRa [457]

Answer: B) 18° C

Step-by-step explanation:

21+(-3) = 21 - 3

            = 18

7 0
3 years ago
Read 2 more answers
In the diagram, . Triangles P M N and Q S R are shown. The lengths of sides P N and R Q are congruent, the lengths of sides Q S
nika2105 [10]

Answer:

20 inches

Step-by-step explanation:

It is because QS and PN are congruent.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Graph the equations to find the solution(s) to the system.
    13·1 answer
  • If the z-value for a given value x of the random variable X is z = 1.96, and the distribution of X is normally distributed with
    9·1 answer
  • How to solve this system of equation 3x + y= 17 and 4x + 2 y = 20
    8·1 answer
  • The Internal Revenue Service (IRS) provides a toll-free help line for taxpayers to call in and get answers to questions as they
    14·2 answers
  • You want to make five-letter codes that use the letters A, F, E, R, and M without repeating any letter. What is the probability
    13·1 answer
  • What’s the domain and rangeee
    8·2 answers
  • What is 2.9225 rounded to the nearest cent?
    12·2 answers
  • The hexagon below has been reduced by a scale factor of One-third.
    13·2 answers
  • What is 2/5 ×5/6 in simplist form
    10·2 answers
  • If 2 Apple way 2 pounds and cost $3.76 what do each apple cost
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!