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snow_lady [41]
3 years ago
12

Multiply the polynomials. (2x2 + 6x + 6)(3x – 2)

Mathematics
1 answer:
gavmur [86]3 years ago
6 0

Answer:

6x^{3}+16x^{2} +6x-12

Step-by-step explanation:

To calculate the result of that mutiplication you have to firs evaluate the first term of the second function multipying the whole first function, woudl be like this:

(3x)(2x^{2}+6x+6)= 6x^{3}+18x^{2} +18x

Now that you have this, you multiply the second term from the second function to obtain:

(-2)(2x^{2}+6x+6)= -4x^{2}-12x-12

Now you just have to add both results:

6x^{3}+18x^{2} +18x

+       -4x^{2}-12x-12

And the result of the sum would be:

6x^{3}+16x^{2} +6x-12

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miskamm [114]

Answer:

2x  {?}^{2}  + 3x - 1 = 0

6 0
3 years ago
One half the sum of a number z and 3 1/2 is 4 1/2
solong [7]
4 1/2(2)=9. Multiply by 2 to get total
9- 3 1/2=z. Subtract 3 1/2 from total to get Z
5 1/2= Z
3 0
3 years ago
Solve. 8 – 3x – x = 12 <br> x =?
poizon [28]
You have to isolate x. First you start off by adding the like terms which is -3x and -x. By adding them you get -4x.

8 - 4x = 12

Then you subtract 8 on both sides since it is positive to isolate x.
-4x = 4

Then you divide -4 by both sides and get x=4/-4

4/-4 is simplified to -1 so the answer is x= -1
3 0
3 years ago
Al obtener el valor de lo que costará la fiesta de graduación para tu grupo te das cuenta que el lugar que decidieron alquilar p
dybincka [34]

Explicación paso a paso:

Debemos buscar el costo de cada boleto y la cantidad de personas que deben ir.

Dada la función que da forma al comportamiento expresado como;

f (x) = (-2x) ^ 2 + 80x + 300 donde;

x es el costo de cada boleto

f (x) es el número de personas que deben ir

Para obtener x, usaremos la expresión;

x = -b / 2a

De la ecuación cuadrática dada, a = -2, b = 80 yc = 300

Sustituir;

x = -80/2 (-2)

x = -80 / -4

x = 80/4

x = 20

Por lo tanto, el boleto cuesta $ 20.

Lo siguiente es obtener la cantidad de personas que deben ir. Para conseguirlo, sustituiremos x = 20 en la expresión modelada como se muestra;

f (x) = (-2x) ^ 2 + 80x + 300

f (20) = (-2 (20)) ^ 2 + 80 (20) +300

f (20) = (-40) ^ 2 + 1600 + 300

f (20) = 1600 + 1600 + 300

f (20) = 3500

Por lo tanto, 3500 personas tienen que ir

8 0
3 years ago
Can anyone help me solve this?
xxMikexx [17]

Answer:

a- 16/100

b- 1/6

c- not sure

Step-by-step explanation:

8 0
3 years ago
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