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
To ship a package, a shipping company charges $2.74 for each pound. How much would it cost to ship a 6.7-pound package?
Olin [163]
I'm pretty sure this would be 18.358
3 0
3 years ago
Is 447 a term of t(n)=24-5n ?
svetoff [14.1K]
No, i don’t believe so. but i’m not 100% sure.
8 0
3 years ago
The edge of each cube used to build this rectangular prism is 1/3 inch long. Which equation shows the volume of the prism, in cu
KiRa [710]
(1/3) cubed, since the equation for the volume of a cube is an edge, cubed
8 0
3 years ago
Read 2 more answers
Work out the area of this quarter circle of radius 8 cm.<br> Give your answer in terms of pie
Bess [88]

16pi

Step-by-step explanation:

pi x r² = ans ÷ 4 = Answer for area

Pi×8²=64pi ÷ 4 = 16pi

3 0
3 years ago
Make <br> x<br> the subject of the formula<br> x<br> −<br> 3<br> =<br> q
lakkis [162]

Answer:

x = q + 3

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define Equation</u>

x - 3 = q

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Add 3 to both sides:          x = q + 3
8 0
2 years ago
Other questions:
  • Two negative integers are 5 units apart on the number line, and their product is 126. What is the sum of the two integers?
    10·2 answers
  • Make ”a” the subject of the formula 9a-8=2(a-b)
    14·1 answer
  • Can someone answer this plz im giving brainliest
    12·2 answers
  • Answer all correctly
    5·2 answers
  • Pls help I’ll brainlest
    6·2 answers
  • The rationalizing factor of 1/√13 is
    13·1 answer
  • Algebra 1 Chapter 5 test
    13·1 answer
  • 24 rounded to the nearest hundred​
    6·2 answers
  • Find the value of x.
    11·1 answer
  • Need this quick!!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!