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
Pavel [41]
3 years ago
13

How do you factor this so you can find the roots or what x equals?

Mathematics
1 answer:
Marina86 [1]3 years ago
6 0
Use the rational roots test.  The possible roots are: plus/minus 6,3,2,1

Use synthetic division and you will see that 3 is a root:

3 | 1 -3 -3 11 -6
   |    3  0  -9  6
   ____________
     1 0  -3   2 0

Use rational root again, to see that possible roots are: plus/minus 2,1

Try 2:

2 | 1 0 -3 -2
   |    2  4  2       
   _____________
     1  2  1  0

The above is x^2+2x+1 which is a perfect square: (x+1)^2

So we have the final factorization: (x-3)(x-2)(x+1)^2

So the roots are: 3, 2, -1
Where -1 is a double zero.

You might be interested in
A laptop computer is purchased for $2300. Each year, its value is 75% of its value the year before. After how many years will th
Alja [10]

Answer:

after the 1st year

Step-by-step explanation:

$2300 × 75% = $1725.00

$2300-$1725= $575

6 0
3 years ago
A farm has cows and ducks. There are 78 feet and 27 heads how many of each Animal are there? How do you know?
LenKa [72]
105 Animals....You know that because when you add together the head & feet that's adding all the animals together​ to get the total number of animals
4 0
3 years ago
A survey found that 31% of all teens buy soda (pop) at least once each week. Seven teens are randomly selected. The random varia
kumpel [21]

Answer:

The value of n is 7.

Step-by-step explanation:

For each teen, there are only two possible outcomes. Either they buy soda at least once each week, or they do not. Since they were selected randomly, the teens are independent of each other, which means that we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

In the binomial distribution, we have that n is the size of the sample. In this question, seven teens are randomly selected, which means that the value of n is 7.

7 0
3 years ago
Tell me the coordinates to graph it plz
Katarina [22]

Answer:

x=2, y=3

Step-by-step explanation:

7 0
3 years ago
Find the equation of the line parallel to y=3x+5 that passes through (0,4) y=3x+4
Contact [7]
Y=3x+4 is the line parallel to y=3x+5
7 0
3 years ago
Other questions:
  • Solve for x.
    13·2 answers
  • a school store has 1200 pencils in stock and sells an average of 24 pencils per day the manager reorders when the number of penc
    10·1 answer
  • Find the value that completes the square r2+6r+c
    13·1 answer
  • M∠abc = (6x + 8)° and m∠def = (12x − 8)°. if ∠abc and ∠def are supplementary, what is the measure of each angle?
    15·1 answer
  • A circle has an inscribed angle LMN with a measurement of 32 what is the measurement of arc LMN?
    6·1 answer
  • Can someone help me out please I need help ?
    9·2 answers
  • A tabletop in the shape of a trapezoid has an area of 7,205 square centimeters. Its longer base measures 115 centimeters, and th
    7·1 answer
  • Perform the indicated operation<br><br>7/8 + 1/2​
    9·1 answer
  • Choose the function to match the graph
    5·1 answer
  • Helpppppppp asap 89points
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!