SOLUTION: Simplify the following expression, and rewrite it in an equivalent form with positive exponents. {{{(-7y^2)/((21x^3)(y^-3))}}}

Algebra ->  Expressions-with-variables -> SOLUTION: Simplify the following expression, and rewrite it in an equivalent form with positive exponents. {{{(-7y^2)/((21x^3)(y^-3))}}}      Log On


   

Question 544594: Simplify the following expression, and rewrite it in an equivalent form with positive exponents.
%28-7y%5E2%29%2F%28%2821x%5E3%29%28y%5E-3%29%29
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
%28-7y%5E2%29%2F%28%2821x%5E3%29%28y%5E-3%29%29 with division u subtract like variable exponents
%28-7y%5E%282-%28-3%29%29%29%2F%2821x%5E3%29 add exponents because subtracting a negative is positive.
%28-7y%5E5%29%2F%2821x%5E3%29simplify:7%2F21=1%2F3
%28-y%5E5%29%2F%283x%5E3%29