What is the simplest form of the radical expression of #(sqrt2+sqrt5)/(sqrt2-sqrt5)#?
Multiply and divide by
Just to add on to the other answers,
We decided to multiply the top and the bottom by
A conjugate is an expression in which the sign in the middle is reversed. If (A+B) is the denominator, then (A-B) would be the conjugate expression.
When simplifying square roots in the denominators, try multiplying the top and bottom by the conjugate. It will get rid of the square root, because