(25x)²+120²=(65x)²

(25x)²+120²=(65x)²

From (25X) &# 178; + 120 & # 178; = (65x) &# 178; we get (65x) &# 178; - (25X) &# 178; = 120 & # 178; namely (65 & # 178; - 25 & # 178;) x & # 178; = 120 & # 178; namely (65-25) (65 + 25) x & # 178; = 120 & # 178; namely 90 × 40x & # 178; = 120 × 120, namely 9 × 4x & # 178; = 12