Please solve this basic equation...
y^-2 - y^2 =?
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Answer: y^-2-y^2
1/y^2-y^2 (a^-1=1/a^1)
1/y^2-y^2/1= 1/y^2-y^4/y^2
y^4/y^2= y^4-2 ( a^b/a^c=a^b-c)
y^2=answer
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