Question

Simplify: (x^2-y^2)/(x+y)

Answer 1

Use algebraic identity :

\(a^2 - b^2 = (a+b)(a-b)\)

So, \(x^2 - y^2 = (x+y)(x-y)\)

\(\cfrac{(x^2-y^2)}{(x+y)} = \cfrac{(x+y)(x-y)}{(x+y)} \)

Cancel out the like terms.