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The above equation may be rewritten as which of the following?

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Bunuel
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The above equation may be rewritten as which of the following? [#permalink] New post   10 May 2017, 12:09
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E

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\(\frac{x^{(-5)}*(x^4)^2*x^3}{x*x^{(-7)}*(x^{(-5)})^4}\)

The above equation may be rewritten as which of the following?

A. 1/x^25

B. 1/x^8

C. x^6

D. x^20

E. x^32
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E
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quantumliner
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The above equation may be rewritten as which of the following? [#permalink] New post   Updated on: 11 May 2017, 09:41
[x^(-5) * x^8 * x^3]/[x * x^(-7) * x(-20)]

= [x^(-5+8+3)]/[x^(1-7-20)]

= [x^6]/[x^(-26)]

= x^32

Answer is E

Originally posted by quantumliner on 10 May 2017, 14:05.
Last edited by quantumliner on 11 May 2017, 09:41, edited 1 time in total.
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Re: The above equation may be rewritten as which of the following? [#permalink] New post   11 May 2017, 03:21
quantumliner wrote:
[x^(-5) * x^8 * x^3]/[x * x^(-7) * x(-20)]

= [x^(-5+8+3)]/[x^(1-7-20)]

= [x^6]/[x^(-26)]

= x^32

Answer is C



ans shud b E.... X^32
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The above equation may be rewritten as which of the following? [#permalink] New post   11 May 2017, 03:51
Bunuel wrote:
\(\frac{x^{(-5)}*(x^4)^2*x^3}{x*x^{(-7)}*(x^{(-5)})^4}\)

The above equation may be rewritten as which of the following?

A. 1/x^25

B. 1/x^8

C. x^6

D. x^20

E. x^32


\(\frac{x^{(-5)}*(x^4)^2*x^3}{x*x^{(-7)}*(x^{(-5)})^4}\)
\(\frac{1}{x^5}*x^8* x^3 *\frac{1}{x} * x^7 * x^2^0\)
\(x^3 * x^3 * x^6 * x^2^0\)
\(x^3^2\)

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Answer... E
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Re: The above equation may be rewritten as which of the following? [#permalink] New post   15 May 2017, 17:28
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Bunuel wrote:
\(\frac{x^{(-5)}*(x^4)^2*x^3}{x*x^{(-7)}*(x^{(-5)})^4}\)

The above equation may be rewritten as which of the following?

A. 1/x^25

B. 1/x^8

C. x^6

D. x^20

E. x^32


Let’s rewrite some of the expressions in the numerator and the denominator:

(x^4)^2 = x^8

(x^-5)^4 = x^-20

So, the numerator becomes:

(x^-5)*(x^8)*(x^3) = x^(-5 + 8 + 3) = x^6

Similarly, the denominator becomes:

x*(x^-7)*(x^-20) = x^(1 - 7 - 20) = x^-26

Then:

x^6/x^-26 = x^(6 - (-26)) = x^(6 + 26) = x^32

Answer: E
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Re: The above equation may be rewritten as which of the following? [#permalink] New post   16 May 2017, 05:01
\(\frac{x^{(−5)}∗(x^4)^2∗x^3}{x∗x^{(−7)}∗(x^{(−5)})^4}\)
The above equation may be rewritten as which of the following?

\(\frac{x^{(−5)}∗(x^4)^2∗x^3}{x∗x^{(−7)}∗(x^{(−5)})^4}\) = \(\frac{x^{-5} * x^8 * x^3}{x * x*^{-7} * x^{-20}}\)= \(\frac{x^{11} * x^{20} * x^7}{x * x^5}\)= \(\frac{x^{38}}{x^6}\)= \(x^{32}\)

.....Answer E....

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Re: The above equation may be rewritten as which of the following? [#permalink]
16 May 2017, 05:01
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