Brown399 Messages 15 Reaction score 0 Thread starter Mar 5, 2010 #1 The correct answer is (1/y) - (1/xy) but i don't understand why What does the sum of xy not equaling zero imply that we can do to the equation to solve it?
The correct answer is (1/y) - (1/xy) but i don't understand why What does the sum of xy not equaling zero imply that we can do to the equation to solve it?
Mark44 Mentor Insights Author Messages 38,140 Reaction score 10,731 Mar 5, 2010 #2 If xy != 0, then neither x nor y = 0. Rewrite (x - 1)/(xy) as two separate fractions. What do you get?
If xy != 0, then neither x nor y = 0. Rewrite (x - 1)/(xy) as two separate fractions. What do you get?