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
astraxan [27]
3 years ago
8

If f(x)=x^3-9x^2+11x+21f(x)=x 3 −9x 2 +11x+21 and x-3x−3 is a factor of f(x)f(x), then find all of the zeros of f(x)f(x) algebra

ically.

Mathematics
1 answer:
Ivanshal [37]3 years ago
6 0

Answer:

x = -1, 3, and 7

Step-by-step explanation:

Using grouping:

f(x) = x³ − 9x² + 11x + 21

f(x) = x³ − 9x² + 18x − 7x + 21

f(x) = x (x² − 9x + 18) − 7 (x − 3)

f(x) = x (x − 6) (x − 3) − 7 (x − 3)

f(x) = (x² − 6x) (x − 3) − 7 (x − 3)

f(x) = (x² − 6x − 7) (x − 3)

f(x) = (x + 1) (x − 7) (x − 3)

To use long division, see the picture.

The zeros are x = -1, 3, and 7.

You might be interested in
Somebody pls help me with this question pls
monitta
292in^3
3x6x10=180 because I’ve split the shape in half
7x4x4=112
180+112=292
4 0
2 years ago
There where four times as many trucks as vans. What is the ratio of the statements could compare the number of trucks to vans .
Westkost [7]

Answer:

4:1

Step-by-step explanation:

4 trucks for 1 van

3 0
2 years ago
Helpp pls fastttttttttttttttttttt
Aleksandr [31]

Answer:

35 square inches

Step-by-step explanation:

S = ( 1/3 x 15 ) x ( 1/3 x 21 ) = 5x7= 35 square inches.

Hope this helps you.

6 0
1 year ago
Celine's Cereal Company is launching a new brand of cereal and she is considering two different sizes for the base of the boxes.
densk [106]

The dimensions of the base of Box 1 are x by 3x.


The base area of Box 1 is:

3x^2

6 0
3 years ago
Read 2 more answers
Review of the basic stock list for your gift shop indicates that you need to reorder the following items: 12 glass vases @ $8.75
Aloiza [94]

Answer:

$291.00

hope it helps

Step-by-step explanation:

12 x 8.75 = 105

6 x 12.50 = 75

12 x 9.25 = 111

105 + 75 + 11 = 291

5 0
3 years ago
Read 2 more answers
Other questions:
  • you and your best friend are going out for ice cream there are 7 different flavors issues from what is the approximate probabili
    8·1 answer
  • Please help.worth 40 point
    15·2 answers
  • Polygon ABCD will be dilated by a scale factor of 2.2 with the origin as the center of dilation, resulting in the image A′B′C′D′
    14·1 answer
  • Among 31​- to 36​-year-olds, 28​% say they have written an editorial letter while under the influence of alcohol. Suppose six 31
    11·1 answer
  • 2.4(5.5r -2.5) = 17.1<br> Round answer to nearest 10th
    10·1 answer
  • The distance from Tylers house to the library is 3 miles. The distance from his home to the park is 12 miles. If the three locat
    14·1 answer
  • In the figure below, bisects . What is the measure of ?<br> Will mark Brainliest / Explain
    5·1 answer
  • Ella and Jake love to skateboard. They created a frame for the ramp and then covered it with wood.
    5·2 answers
  • Which inequality describes all the solutions to 5(3-X) &lt; -2x + 6 ?
    12·1 answer
  • 40 hours is what part of 120 hours
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!