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we use 1,2,3,...,9 whats this problem anser ? 1/(x*x)+x/(x*x)+x/(x*x)=1

Guest Oct 27, 2014

Best Answer 

 #1
avatar+17744 
+5

If you can only use the whole numbers from 1 through 9 to solve that problem, you won't get an answer.

1/x² + 1/x + 1/x = 1

1/x² + 2/x = 1                         

1 + 2x =  x²                                (multiplying both sides by x²)

0 = x² - 2x - 1

x = 1 ± √2                                   (using quadratic formula)

geno3141  Oct 27, 2014
 #1
avatar+17744 
+5
Best Answer

If you can only use the whole numbers from 1 through 9 to solve that problem, you won't get an answer.

1/x² + 1/x + 1/x = 1

1/x² + 2/x = 1                         

1 + 2x =  x²                                (multiplying both sides by x²)

0 = x² - 2x - 1

x = 1 ± √2                                   (using quadratic formula)

geno3141  Oct 27, 2014
 #2
avatar+87293 
0

Nice analysis there, geno........!!!!

 

CPhill  Oct 27, 2014

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