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Crank
3 years ago
6

3 power 1+x + 3 power 1-x = 9

Mathematics
1 answer:
Rus_ich [418]3 years ago
6 0
I have no clue I just need to answer some questions before I can ask my own again lol
You might be interested in
Consider the following division of polynomials.
Bond [772]

x^4=x^2\cdot x^2. Multiplying the denominator by x^2 gives

x^2(x^2+2x+8)=x^4+2x^3+8x^2

Subtracting this from the numerator gives a remainder of

(x^4+x^3+7x^2-6x+8)-(x^4+2x^3+8x^2)=-x^3-x^2-6x+8

-x^3=-x\cdot x^2. Multiplying the denominator by -x gives

-x(x^2+2x+8)=-x^3-2x^2-8x

and subtracting this from the previous remainder gives a new remainder of

(-x^3-x^2-6x+8)-(-x^3-2x^2-8x)=x^2+2x+8

This last remainder is exactly the same as the denominator, so x^2+2x+8 divides through it exactly and leaves us with 1.

What we showed here is that

\dfrac{x^4+x^3+7x^2-6x+8}{x^2+2x+8}=x^2-\dfrac{x^3+x^2+6x-8}{x^2+2x+8}

=x^2-x+\dfrac{x^2+2x+8}{x^2+2x+8}

=x^2-x+1

and this last expression is the quotient.

To verify this solution, we can simply multiply this by the original denominator:

(x^2+2x+8)(x^2-x+1)=x^2(x^2-x+1)+2x(x^2-x+1)+8(x^2-x+1)

=(x^4-x^3+x^2)+(2x^3-2x^2+2x)+(8x^2-8x+8)

=x^4+x^3+7x^2-6x+8

which matches the original numerator.

3 0
3 years ago
Read 2 more answers
A photocopier is purchased for $5200 and depreciates in value by 15% per year. Which equation best describes the value of the ph
Likurg_2 [28]

Answer:

y=5200(0.85)^x

Step-by-step explanation:

A photocopier is purchased for $5200 and depreciates in value by 15% per year. Which equation best describes the value of the photocopier in years? O.A. y=5200(1.15) OB. y = 5200(0_15) - O cy= 5200(1.85) ODy=5200(0.85)"​

4 0
3 years ago
What is the inverse of the given relation? y = 4x - 8
Aleks [24]
Let y be x, and x be y.

x = 4y - 8

Rearrange to make y the subject.

x + 8 = 4y

Therefore

y = (x + 8) / 4

is the inverse.
4 0
3 years ago
Read 2 more answers
2(2q + 1.5) = 18 - 9​
lys-0071 [83]

Answer:

q= 3/2   which equals     1 1/2

Step-by-step explanation:

hope this help good bless and please mark me the brainllest

5 0
3 years ago
(URGENT) I just need to know how you do this... please give a detailed answer on what to do!
enyata [817]
You simplify the equation and you use a x y chart and once you get all the points from simplifying the equation you graph those points on the graph chart then connect them
4 0
3 years ago
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