Factor \(x^2 + 2xy - 15y^2\)
If you go step by step you get:
1. x^2+2xy-15y^2
2. x^2-3xy+5xy-15^2
3. x(x-3)+5y(x-3)
4. (x+5y)(x-3)
So from here pour answere is (x+5y)(x-3)
