SOLUTION: Use {{{u=5/x}}} as a substitution to solve {{{125/x^2}}}+{{{35/x}}}+{{{2=8}}}
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Question 1126704: Use as a substitution to solve ++
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Answer by FrankM(1040) (Show Source): You can put this solution on YOUR website!
When you substitute, you get
5u^2+7u+2=8
5u^2+7u-6=0
(5u-3)(u+2)=0
5u-3=0
5u=3
u=3/5
5/x=3/5
3x=25
x= 25/3
AND
u=-2
5/x = -2
x=-5/2
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