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Rus_ich [418]
3 years ago
14

(2x+7x2+x)+(2x-4x-12)

Mathematics
1 answer:
expeople1 [14]3 years ago
3 0

Answer:

Step-by-step explanation:

Solución paso-a-paso

Más icono

Reformateo de la entrada:

Los cambios realizados en su entrada no deberían afectar la solución:

(1): "x2"   fue reemplazado por   "x^2".  1 reemplazo (s) más similar (es).

PASO

1

:

Ecuación al final del paso 1

 (((2 • (x3)) +  7x2) -  7x) -  12

PASO  

2

:

Ecuación al final del paso

2

:

 ((2x3 +  7x2) -  7x) -  12

PASO

3

:

Buscando un cubo perfecto

3.1    2x3+7x2-7x-12  no es un cubo perfecto

Tratando de factorizar sacando:

3.2      Factorización:  2x3+7x2-7x-12  

Divida cuidadosamente la expresión en grupos, cada grupo tiene dos términos:

Grupo 1: -7x-12  

Grupo 2:  7x2+2x3  

Retirar de cada grupo por separado:

Grupo 1:  (7x+12) • (-1)

Grupo 2:   (2x+7) • (x2)

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marshall27 [118]

Answer:

Step-by-step explanation:

f(x) = -8x² + 7x³ + 2x - 5

     =  7x³ - 8x² + 2x - 5          This meets the definition of a polynomial

4 0
3 years ago
The Century club runs the concession stand during football games. They sell snacks and drinks. 50 snacks and 180 drinks will sel
katrin2010 [14]

Answer:

The cost of each drink is $1.5

Step-by-step explanation:

Let us represent

The cost of snacks = x

The cost of drinks = y

50 snacks and 180 drinks will sell for $320

Hence:

50x + 180y = 320....... Equation 1

75 snacks and 100 drinks will sell for $225.

Hence:

75x + 100y = 225....... Equation 2

Combining both Equations together

50x + 180y = 320....... Equation 1

75x + 100y = 225....... Equation 2

Multiply Equation 1 by 75 and Equation 2 by 50 to eliminate x

3750x + 13500y = 24000..... Equation 3

3750x + 5000y = 11250....... Equation 4

Subtract Equation 4 from Equation 3

8500y = 12750

y = 12750/8500

y = $1.5

Therefore, the cost of each drink is $1.5

4 0
3 years ago
The volume of a sphere is 267.95 m2. To the nearest meter, what is the radius of the sphere? Use
Novosadov [1.4K]

Answer:

4m

Step-by-step explanation:

  1. v=4/3 pi r^3
  2. substitute 267.95=4/3×3.14×r^3
  3. 267.95= 12.56r^3/3
  4. multiply by the reciprocal on both sides 64=r^3
  5. find the cuberoot on both sides to remove the cube hence 4=r
3 0
3 years ago
Please help I will mark you as brainliest
Vilka [71]

Answer:

3999

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What are the values of X and Z.
stiv31 [10]

Answer:

x = 12, z  = 86

Step-by-step explanation:

Two angles are called supplementary when their measures add up to 180 degrees.

(12x -58  + 13x - 62 ) = 180°

12 x + 13x -58 - 62 = 180°

25x - 120 = 180

25x = 180 + 120

x = 300/ 25

x = 12

----------------------------------------------------------------------------------

(z° + 13x - 62) = 180

(z° + 13(12) - 62 )= 180

(z° +  156 - 62 )= 180

(z° + 94 ) = 180

z° = 180 - 94

z  = 86

5 0
3 years ago
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