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
alexdok [17]
3 years ago
7

Find the zero of the polynomial function x^3+8x^2-11x-18

Mathematics
1 answer:
Crank3 years ago
4 0

Answer:

The answer to your question is:  (x - 2)(x + 9)(x + 1)

Step-by-step explanation:

                                            x³  +  8x²  -  11x  -  18

find the prime factors of 18

18   2

9   3                 Try :    ± 1, ±2, ±3, ± 6,± 9

3   3

 1            

Synthetic division

                                1     8     -11    -18         2

                                       2     20    18                                            

                                1    10      9      0            First factor  ( x - 2)

                                x² + 10x + 9 = 0

                               (x + 9)(x + 1) = 0 polynomial of the form x² + bx + c

  x³  +  8x²  -  11x  -  18 = (x - 2)(x + 9)(x + 1)

You might be interested in
Simplify 27^2.<br><br> please (thxx)
adoni [48]

Answer:

729

Step-by-step explanation:

Raise 27 to the power of 2.

729

4 0
3 years ago
A softball has a diameter of 3.82 inches. How many square inches of material is necessary to cover a softball? Use 3.14 for π
lisabon 2012 [21]

Answer:

45.82 square inches

Step-by-step explanation:

Use the formula for the surface area of a sphere, A = 4\pir²

If the diameter is 3.82 inches, the radius is 1.91 inches.

Plug in 3.14 as \pi and 1.91 as r, and solve:

A = 4\pir²

A = 4(3.14)(1.91²)

A = 45.82

So, approximately 45.82 square inches of material are needed.

6 0
3 years ago
the length of a rectangle is 5ft more than twice the width and teh area of the rectabgle is 42ft squared. what are the dimension
lara [203]
The width is 3.5 and the length is 12

4 0
3 years ago
Write the equation of the line in fully simplified slope-intercept form.
mixer [17]

Answer:

y=1/2x+6

Step-by-step explanation:

3 0
3 years ago
Can you always put two triangle together to make a rectangle? Explain why or why not.
anygoal [31]
no, since a rectangle requires 90-degree corners, and every angle inside an equilateral triangle is 60-degrees. The only multiple of 90 that you can make is 180-degrees (or any multiple of it).
6 0
3 years ago
Other questions:
  • Help me please I need help on this question
    9·1 answer
  • The following numbers show the cost of renting a full-size rental car, based on the number of miles driven. (0 miles=$68.97), (5
    12·1 answer
  • Raise your roses the lilies in a garden is 3 to 2 if Lillys and roses are the only flowers in the garden what percentage of the
    10·1 answer
  • What is the exact value that is 47 ​% of 1018 ​?
    14·2 answers
  • Survey of a company's employees explored the relationship between employee status and support of a new workplace safety policy T
    14·1 answer
  • This equation shows how the total amount of paper Scott's office has recycled depends on the number of weeks since they started
    6·1 answer
  • . En un concesionario de coches hay modelos de varios colores. Los rojos suponen 1 6 del total, los azules, 2 9 del total, y los
    5·1 answer
  • Need help again... asap
    9·1 answer
  • What is the speed of a car that goes 299 kilometers in 2 hours?
    7·1 answer
  • In 2005, 11.6 out of every 50 employees at a company were women. If there are 40,505 total company employees, estimate the numbe
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!