Posted by **Estela** on Monday, March 16, 2009 at 3:38pm.

Rewrite the rational expression as an equivalent rational expression with the given denominator. (Both are fractions)

It's 21 over x squared minus 6x is equal to 1 over x (x-6)(x+5)

-21 = 1

x2 -6x x(x-6)(x+5)