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Homework Statement
9 - 9y^{-2}
____________
y^{-1} - y^{0}
this whole thing is then raised to 2 (I can't seem to format it that way:( )
Homework Equations
none
The Attempt at a Solution
I'm hoping someone would guide me through this :(
yes xD !Well, anything raised to the 0-th power is 1 so that simplifies that. I'm not entirely sure about your general question however. Are you looking for something that is simply expressed as positive exponents?
[tex]\left(\frac{9- 9y^{-2}}{y^{-1}- y^{0}}\right)^2[/tex]Homework Statement
9 - 9y^{-2}
____________
y^{-1} - y^{0}
this whole thing is then raised to 2 (I can't seem to format it that way:( )
Homework Equations
none
The Attempt at a Solution
I'm hoping someone would guide me through this :(
[tex]\left(\frac{9- 9y^{-2}}{y^{-1}- y^{0}}\right)^2[/tex]
[tex]\left(9\frac{1- \frac{1}{y^2}}{\frac{1}{y}- 1}\right)^2[/tex]
Multiply both numerator and denominator by [itex]y^2[/itex].