In a triangle the sum of two sides is \( x \) and their product is \( y \) such that \( (x+z)(x-z)=y \) where \( z \) is the third side of the triangle. Square of the length of the third side of the triangle is (a) \( x^{2}+y \) (b) \( x^{2}-y \) (c) \( x^{2}+y^{2} \) (d) \( x-y^{2} \) 📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live