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4 years ago

What is the value of a?

Mathematics

1 answer:

dexar [7]4 years ago

5 0

Answer:

a= 2x <u><em>(edit: i just forgot it should be a integer x.x, forgive my blondiness)</em></u>

Step-by-step explanation:

usually when doing equations like that, you can separate one of the parenthesis with 0

(in this case, we will use (2x-a) )

Then create a equation, which should look like:

2x-a=0

Then solve for a

$(-2x)2x-a=0(-2x)\\(-1)-a=-2x (-1) \\a=2x$

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Question 14 of 25What is the complete factorization of the polynomial below?x³+x² + 4x+4O A. (x-1)(x+2)(x+2)B. (x + 1)(x + 2)(x

mote1985 [20]

GIVEN:

We are given the following polynomial;

$x^3+x^2+4x+4$

Required;

We are required to factorize this polynomial completely.

Step-by-step explanation;

To factorize this polynomial, we start by grouping;

$(x^3+x^2)+(4x+4)$

We now take the common factor in each group;

$\begin{gathered} x^2(x+1)+4(x+1) \\ \\ (x^2+4)(x+1) \end{gathered}$

Next, we factorize the first parenthesis. To do this we set the equation equal to zero and solve for x as follows;

$\begin{gathered} x^2+4=0 \\ \\ Subtract\text{ }4\text{ }from\text{ }both\text{ }sides: \\ \\ x^2=-4 \\ \\ Take\text{ }the\text{ }square\text{ }root\text{ }of\text{ }both\text{ }sides: \\ \\ x=\pm\sqrt{-4} \\ \\ x=(\pm\sqrt{-1}\times\sqrt{4}) \\ \\ x=\pm2i \end{gathered}$

Therefore, the factors of the other parenthesis are;

$(x+2i)(x-2i)$

Therefore, the complete factorization of the polynomial is;

ANSWER:

$(x+1)(x+2i)(x-2i)$

Option C is the correct answer.

4 0

1 year ago

Do you expect 1/n to be larger or smaller than 1/n+1?Do you expect 1/n to be larger or smaller than 1/n+2? Explain why.

Fudgin [204]

Answer:

Step-by-step explanation:

fortnight

5 0

4 years ago

Twice the sum of 15 and a number

pashok25 [27]

2(15+N)

replace a number by N

replace the sum of 15 and N by (15+N)

and lastly, replace twice by 2

So your answer is 2(15+N)

7 0

3 years ago

Read 2 more answers

Can someone plz help? Only have a hour...I'll make crown the best and triple the points!!!

kykrilka [37]

Answer:

x= 3.57

Step-by-step explanation:

32 ( x + 2.5) = 114.24

32* x + 32* 2.5= 114.24

32x + 80= 114.24

-80 -80

32x= 114.24

/ 32 /32

x= 3.57

for the part that says convince me, we can use the eqution

/= divide

8 0

4 years ago

They told her they charge $45 to install the cable box and $60 each month for the service.

Nady [450]

The answer is 2,700
This is because

60
x45
------------
300
+2400
--------------

Or Use Partial Products

60. 0. 1.0x40
___________. 2.60x40
I2400 I. 30. I.
40I. I. I. 3.0x40
|---------I----------I. 4.0x5
5I. 0. I. 0. I
l____ I______I
I hope this helped because this was a lot and I mean a lot of work

3 0

3 years ago