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earnstyle [38]
3 years ago
9

Solve the expression for x: (4-2)(x-2)=4x-8

Mathematics
1 answer:
ivann1987 [24]3 years ago
5 0
First, distribute the left side. You should get 4x-8-2x+4=4x-8. Then, get all the xs on one side.

4x-2x-4x-8+4=-8

Then, put the numbers on one side.

4x-2x-4x=-8+8-4

Then, add it up.

-2x=-4

Then, solve for x.

(-2x)/(-2)=(-4)/(-2)

x=2

Hope that helps!
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If the functions are inverses, then f(g(x)) = x.

A.

\displaystyle f(g(x))=f\left(\frac{3x+1}{3}\right)=\frac{1}{\frac{3x+1}{x}-3}\\\\=\frac{1}{\left(\frac{3x+1-3x}{x}\right)}=\frac{1}{\left(\frac{1}{x}\right)}=x

The functions are inverses of each other.

B. The domain of f(x) = x≠3. The domain of g(x) is x≠0.

The domain of f(g(x)) is (-∞, 0) ∪ (0, ∞).

The domain of g(f(x)) is (-∞, 3) ∪ (3, ∞).

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3 years ago
A perfect square trinomial can be represented by a square model with equivalent length and width. Which polynomial can be repres
lina2011 [118]
The correct answer is 
A) x^2 - 6x + 9

In fact, this is a trinomial of the form ax^2-bx+c, whose solutions are given by
x_{1,2}=  \frac{-b\pm \sqrt{b^2 -4ac} }{2a}
Using this formula for the trinomial of the problem, we find:
x1,2=  \frac{6 \pm \sqrt{6^2-4\cdot 1\cdot 9}}{2} =3
<span>we see that this trinomial has two coincident solutions (x=3 with multiplicity 2). This means that it can be rewritten as a perfect square, in the following form: 
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Marta_Voda [28]

Answer:

Yes its correct the unhighlighted is complement

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Scorpion4ik [409]

Answer:

6

General Formulas and Concepts:

<u>Algebra I</u>

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Step-by-step explanation:

<u>Step 1: Define</u>

9b⁶c⁵

<u>Step 2 Identify</u>

Our largest degree is the variable raised to the highest exponent.

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Therefore our degree is 6.

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Answer:

Step-by-step explanation:

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