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
ILL GIVE BRAINLIEST IF ITS RIGHT
Vesna [10]

Answer: 6

Step-by-step explanation:

Slope is found by doing:

\frac{y_1 - y}{x_1 - x}

(x1 and y1 must be from the same ordered pair and x and y must be from the same ordered pair, however point (x1,y1) and (x,y) can be used interchangeably)

Let us say that (x1,y1) is (3,18)

And (x,y) is (5,30)

\frac{18 - 30}{3 - 5} = \frac{-12}{-2} = 6

6 0
3 years ago
For what value of x must ABCD be a parallelogram?
Svetach [21]

Answer:

x  = 3

Step-by-step explanation:

to be a parallelogram opposite sides have to be equal

so we have

DC = AB\\\\20x-7 = 16x+5

now solve for x

20x-7+7 = 16x+5+7\\\\20x = 16x + 12\\\\20-16x = 16x+12-16x\\\\4x = 12\\\\x = \frac{12}{4} = 3

4 0
3 years ago
Is this statement always sometimes or never true. If x and y are supplementary angels then x is obtuse
olga nikolaevna [1]
Someimes becasue either x or y could be obtuse.
5 0
3 years ago
Read 2 more answers
Angie has 5 less cds than david
maxonik [38]
The answer is the third one

Hope this helps! :)
7 0
3 years ago
Read 2 more answers
Suppose C1;C2;C3 are three didifferent biased coins, whose probability of heads equals 0.4, 0.5, and 0.2 respectively. Suppose c
allochka39001 [22]

Solution :

$ P(A \cap B) = P(\text{coin}\ C_1 \text{ chosen and 4 heads in 10 trails})$

                $= \frac{1}{3} \times ^{10}C_4 \times 0.4^4 \times 0.6^6$

               = 0.0836

P(B)= P(coin $C_1$ chosen and 4 heads in 10 trails) + P(coin $C_2$ chosen and 4 heads in 10 trail) + P(coin $C_3$ chosen and 4 heads in 10 trail)

     $=\frac{1}{3}\times ^{10}C_4 \times 0.4^4 \times 0.6^6 + \frac{1}{3}\times ^{10}C_4 \times 0.5^4 \times 0.5^6 + \frac{1}{3}\times ^{10}C_4 \times 0.2^4 \times 0.8^6$

    $=0.0836+0.0684+0.0294$

    $=0.1813$

P(A|B) = $\frac{P(A \cap B)}{P(B)}$

          $=\frac{0.0836}{0.1813}$

         $=0.4611$

5 0
3 years ago
Other questions:
  • Does anyone know how this works or the answer to this?
    10·1 answer
  • #25 please! Thanks in advanced.
    8·1 answer
  • A rectangle has a long side of length 8.5 cm its perimeter is 34 cm
    6·2 answers
  • Kong took 15% fewer seconds than Nolan took to complete his multiplication timed test. Kong took 85 seconds
    8·1 answer
  • PLZ HELP NEED HELP FAST HURRY PLZ 10 POINTS A rectangular prism has a length of 4 1/2 mm, a width of 4 1/2 mm, and a height of 6
    7·2 answers
  • The automatic opening device of a military cargo parachute has been designed to open when the parachute is 135 m above the groun
    14·1 answer
  • Add me in fortnite my epic is “I am the sea 81.”
    7·1 answer
  • -3×14-6 help0pppppppppp
    5·1 answer
  • Hannah is working at a new company. Her $15/ hour wage will increase by 10% after 6 months. Then her hourly wage will increase a
    14·2 answers
  • Help me pleaseeeeeeeeeeeeeeeeeeeeeeee
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!