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weeeeeb [17]
3 years ago
10

Does anyone know the answer to the attached?​

Mathematics
1 answer:
user100 [1]3 years ago
7 0
6 ^ 2- 13(6) +42/ -5(6)^2+37(6)-42

36- 78+ 42/ -30^2+222-42
0/ 900+222-42
0/1,080
anything divided by 0 is 0
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Step-by-step explanation:

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Subtract these polynomials.
marta [7]
The correct answer is:   [A]:  " 4x³ + x² − 11x + 15 " .

_______________________________________________________
<u>Note</u>:
_______________________________________________________

(6x³ − 4x + 5) − (2x³ − x² + 7x − 10) ;

=  (6x³ − 4x + 5) − 1(2x³ − x² + 7x − 10) ;
_________________________________________

Examine the following portion of the expression:
_________________________________________
    " − 1(2x³ − x² + 7x − 10) " ; 

=  (-1 * 2x³)  − (-1 * x²) + (-1 * 7x) − (-1 * 10) ; 

=  (-2x³) − (-1x²) + (-7x) − (-10) ; 

= (-2x³)  + 1x² − 7x + 10 ; 

=   " − 2x³ + 1x² − 7x + 10 " ;

Now, bring down the other part:

 6x³  − 4x  +  5 − 2x³ + 1x² − 7x + 10 ;

Combine the "like terms" :

6x³  − 2x³ =  + 4x³ ;

− 4x − 7x =  − 11x ; 

+ 5 + 10 = + 15 ; 

and bring down the:  

+ 1x² ( which equals:  " x² ") ; 
____________________________________________________
And rewrite:
____________________________________________________
   →  " 4x³ + x² − 11x + 15 " ; 

   →  which is:  Answer choice:  [A]:  " 4x³ + x² − 11x + 15 " .
____________________________________________________
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What is the function of delta sign in maths
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-3x-3y=3 ,y=-5x-17 solving systems by substitution
Law Incorporation [45]

Answer:

(-4, 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

<u>Algebra I</u>

  • Solving systems of equations by substitution/elimination

Step-by-step explanation:

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

-3x - 3y = 3

y = -5x - 17

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

<em>Substitution</em>

  1. Substitute in <em>y</em>:                    -3x - 3(-5x - 17) = 3
  2. Distribute -3:                       -3x + 15x + 51 = 3
  3. Combine like terms:           12x + 51 = 3
  4. Isolate <em>x</em> term:                     12x = -48
  5. Isolate <em>x</em>:                              x = -4

<u>Step 3: Solve for </u><em><u>y</u></em>

  1. Define equation:                    y = -5x - 17
  2. Substitute in <em>x</em>:                       y = -5(-4) - 17
  3. Multiply:                                  y = 20 - 17
  4. Subtract:                                 y = 3
8 0
3 years ago
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