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
There are 12 boys and 16 girls in Marco's class (including Marco). What is the probability that a student chosen at random from
qaws [65]

Answer: 3/7

Step-by-step explanation:

There's 28 student total.

12/28 simplify to 3/7

3 0
2 years ago
In a study of a gender selection method used to increase the likelihood of a baby being born a​ girl, 2086 users of the method g
kipiarov [429]

Answer:

C : does not have statistical significance

Step-by-step explanation:

Because there is a 15% chance of getting that many girls by chance, the method - does not have statistical significance.

By this method, the percentage of girls = 1067/2086=0.5115 or 51.15%

This type of method does not have practical significance.

6 0
3 years ago
describe de manera clara y sencilla tres conceptos principales del tema anterior y explique su importancia​
krok68 [10]

bibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabiblotecca

8 0
2 years ago
Three ordered pairs that solve the equation x - 4 Y equals -18
lawyer [7]
X-4y=-18
an easy way is to solve for oone variable
solve for x
add 4y both sides
x=4y-18

when y=1, x=-16
when y=0, x=-18
when y=2, x=-10

(x,y)
so some orderd pairs are
(-16,1)
(-18,0)
(-10,2)
4 0
3 years ago
HELPPPPPPPPPPPPPP PLSSSSSS
pshichka [43]

Answer:

x=5\sqrt{3}

Step-by-step explanation:

Evaluate the Pythagorean Theorem for the triangle.

a² + b² = c²

5² + x² = 10²

25 + x² = 100

Subtract 25 from both sides.

x² = 75

Square root.

x = sqrt(75)

Expand the radical.

x = 5*sqrt(3)

8 0
2 years ago
Other questions:
  • Solve by substitution <br>-4x-2y=-12 <br>4x+8y=-24
    15·1 answer
  • 0.25×m = 3.6 m=_____.
    7·1 answer
  • Which graph represents this equation?
    11·1 answer
  • In a class A of 25 students, 20 passed in first class; in another class B
    8·2 answers
  • May someone help me out
    11·1 answer
  • In a coordinate plane what is the difference between (-3 1/2, 4) and (2 1/2)?​
    10·1 answer
  • Which of the following phrases are inequalities?
    7·1 answer
  • The manager of a shopping center wishes to obtain information on the shopping habits of people in the area. The area
    14·1 answer
  • A 20-gallon container is filled halfway with a mixture that is $90\%$ vinegar and $10\%$ water. How many gallons of water must b
    14·1 answer
  • X ^ 2 + y ^ 2 + 6y - 67 = 2y - 6x; circumference
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!