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5*(-5/sqrt(5))+1/(5/sqrt(5) full operation plz

 Mar 21, 2016
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Simplify the following:
1/(5/sqrt(5))-(5×5)/sqrt(5)

Multiply the numerator of 1/(5/sqrt(5)) by the reciprocal of the denominator. 1/(5/sqrt(5)) = (1 sqrt(5))/(5):
(sqrt(5))/(5)-(5×5)/sqrt(5)

5 (-5)  =  -25:
-25/sqrt(5)+(sqrt(5))/(5)

Rationalize the denominator. (-25)/sqrt(5)  =  (-25)/sqrt(5)×(sqrt(5))/(sqrt(5))  =  (-25 sqrt(5))/(5):
(-25 sqrt(5))/(5)+(sqrt(5))/(5)

(-25)/5 = (5 (-5))/5 = -5:
-5 sqrt(5)+(sqrt(5))/(5)

Put each term in (sqrt(5))/(5)-5 sqrt(5) over the common denominator 5: (sqrt(5))/(5)-5 sqrt(5)  =  (sqrt(5))/(5)+(-25 sqrt(5))/(5):
(sqrt(5))/(5)+(-25 sqrt(5))/(5)

(sqrt(5))/(5)+(-25 sqrt(5))/(5) = (sqrt(5)-25 sqrt(5))/(5):
(sqrt(5)-25 sqrt(5))/(5)

sqrt(5)-25 sqrt(5) = -24 sqrt(5):
Answer: |  (-24 sqrt(5))/(5)

 Mar 21, 2016

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