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
Burka [1]
3 years ago
11

How to find the missing values ?! I never did this.

Mathematics
1 answer:
Semmy [17]3 years ago
8 0

Answer:

  (a, b, c) = (2, -6, 2)  or  (2, 2, -6)

Step-by-step explanation:

Expand the expression on the right and match coefficients, or factor the expression on the left and match factors.

  2x³ -8x² -24x = ax(x +b)(x +c)

  2x(x² -4x -12) = ax(x +b)(x +c)

  2x(x -6)(x +2) = ax(x +b)(x +c)

In this form, we can match the numbers to get ...

  • a = 2
  • b = -6
  • c = 2

You may recognize that b and c can be interchanged.

_____

<em>Alternate solution</em>

If you expand the expression on the right, you get ...

  = ax³ +a(b+c)x² +abcx

This gives you 3 equations:

  • a = 2
  • 2(b +c) = -8
  • 2bc = -24

This is basically the same factoring problem in another form. You have ...

  bc = -12

  b+c = -4

The factors of -12 are ...

  -12 = 1(-12) = 2(-6) = 3(-4) . . . . . . with sums -11, -4, -1

So, b and c are -6 and 2, in no particular order.

  (a, b, c) = (2, -6, 2)  or  (2, 2, -6)

You might be interested in
Not gonna sugar coat it <br> im cheeting...
Neporo4naja [7]

Answer:

The answer is <u><em>-0.44</em></u>.

Hope that helps. x

6 0
2 years ago
Read 2 more answers
Help please! I need to write 4y =-3x + 12 in standard form, find the y-intercept of the previous equation, as an ordered pair, a
damaskus [11]

Answer:

-3x+4y=12\\y-intercept: (0,3)\\x-intercept: (-4,0)

Step-by-step explanation:

The standard form of a linear equation is ax+by=c, where a , b, and c are constants in the equation.

Based on the equation you have provided, the standard form would be -3x+4y=12, where a=-3, b=4, c=12.

To find the y-intercept, set x=0.

-3(0)+4y=12\\0+4y=12\\4y=12\\y=\frac{12}{4} =3

Therefore, the y-intercept is (0,3).

Do the same thing for the x-intercept, but this time with y=0.

-3x+4(0)=12\\-3x+0=12\\-3x=12\\x=\frac{12}{-3} =-4

Therefore, the x-intercept is (-4,0).

5 0
3 years ago
HI! I HAVE A TEST ON MONDAY AND IM TRYING TO STUDY, IM KINDA STUCK ON HOW TO DO THIS PROBLEM..
sergij07 [2.7K]

Answer: See below

Step-by-step explanation:

number of yellow pieces/number of blue pieces

= 14/24

= 7/12 --> 7 to 12 --> 7:12

The ratio that represents the number of yellow pieces to the total number of pieces is part-to-whole

number of yellow pieces/total number of pieces

= 14/100

= 7/50 --> 7 to 50 --> 7:50

The ratio that represents the number of blue pieces to the total number of pieces is part-to-whole

= 24/100

= 6/25 --> 6 to 25 --> 6:25

8 0
2 years ago
Help anyone know this???
s2008m [1.1K]
The first one is right
7 0
3 years ago
A sample of 30 11th graders were asked to select a favorite pattern out of 6 choices. The following display shows what their fav
MrRissso [65]

Answer:

C

Step-by-step explanation:

It looks to me possibly C

hope it helps you

3 0
3 years ago
Read 2 more answers
Other questions:
  • A case of floor tiles has 12 boxes in it. if the case cost $384, how much does one box cost
    10·2 answers
  • Match the vocabulary (THE NUMBERS) with its definition or representation (LETTERS) WORDS. 1.Relation 2.slope 3.parallel lines 4.
    15·2 answers
  • the volume of two similar prisms are 891 cm and 33cm. the surface area of the larger prism is 153cm. what is the surface area on
    9·2 answers
  • Mr. Lau drove for 4 hours at a constant speed of r miles per hour.
    15·1 answer
  • Paul runs a speed of 9 miles per hour. How many miles per second is his speed?
    6·1 answer
  • Which fraction is not equivalent to 7 /30
    11·2 answers
  • How do you write 15/1000in scientific notation​
    12·1 answer
  • Can you help with this one?
    9·1 answer
  • At a school district there are 55 employees. If next year the number of employees increases by
    11·1 answer
  • Which expression is equal to “seven more than a number multiplied by 9"?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!