I need to know how to solve this algebra problem

Mathematics

2 answers:

yan [13]3 years ago

4 0

8(x2+2x-8)
8(x2+4x-2x-8)
8[(x2+4x]-(2x-8)]
8[x(x+4)-2(x+4)]

8(x-2)(x+4) is your final answer !!!!

Cerrena [4.2K]3 years ago

3 0

Wait can you check if this is right: 8(x^2 + 2x - 8)
if that’s correct, this is the explanation:
first look at all of your terms: 8x^2, 16x, and 64.
find the greatest common factor which is 8 (because all of them have a factor of 8)
factor the 8 out of all of the terms and put an 8 outside of the parenthesis.
you will end up with 8(x^2 + 2x - 8)

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Solve the equation, and check the solutions 2(√x+3)=6.

zhannawk [14.2K]

Answer:

x = 0

Step-by-step explanation:

$2(\sqrt{x}+3)=6$

Expanding the left hand side we get

$\Rightarrow 2\sqrt{x}+6=6$

Taking 6 from left hand side to right hand side

$\Rightarrow 2\sqrt{x}=6-6\\\Rightarrow 2\sqrt{x}=0$

Dividing both sides by 2

$\Rightarrow \sqrt{x}=\frac{0}{2}\\\Rightarrow \sqrt{x}=0\\\Rightarrow x=0$

So, x = 0

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3 years ago

What is the value of x??? !!

statuscvo [17]

The data is a little bit complex,but you can use the knowledge of vector in the subject of algebra,or you can ultimate the basic Euclidean knowledge,like cosine theorem.In detail,you can list two equation with two variable,and get the answer.but i don't finish calculating it.

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4 years ago

Find the average rate of change over the interval [-1,2] (from x = -1 to x = 2) for the graph below

Lyrx [107]

Hello!

Find the coordinate where x = -1:

At x = -1, y = 1, so the coordinate is (-1, 1).

Find the coordinate where x = 2:

At x = 2, y = -2, so the coordinate is (2, -2).

Find the rate of change between the points using the slope formula:

$slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}$