SOLUTION: x^2/y^2-3x^2y^-2+4x^-3x^5y^-2-8y^-2/x^-2 I've tried this several times and keep getting -6x^2/y^2 but the answer is supposed to be -6x^2y^-2 Why does Saxon bring the y^2 up a

Question 32989This question is from textbook Saxon Algebra 1
: x^2/y^2-3x^2y^-2+4x^-3x^5y^-2-8y^-2/x^-2
I've tried this several times and keep getting -6x^2/y^2 but the answer is supposed to be -6x^2y^-2
Why does Saxon bring the y^2 up and make it a negative exponent?
Thank you for helping me understand this.
Rebecca This question is from textbook Saxon Algebra 1

Answer by longjonsilver(2297) (Show Source): You can put this solution on YOUR website!
They seem to want to have an expression with no denominator, that is all.

Other people would prefer to have an expression with no negative powers, and so would keep the denominator of . Just depends what the question asked for specifically:

"Bring every term up to the numerator" or "leave all exponents as positives" etc.

If the question didn't specify, then the book authors are just doing what they want to... either version is correct though mathematically.

Jon.

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