\(\left(225-5^2\right)\left(225-6^2\right).....\left(225-15^2\right)\)
\(=\left(225-5^2\right)\left(225-6^2\right).....\left(15+15\right)\left(15-15\right)\)
\(=\left(225-5^2\right)\left(225-6^2\right).....\left(15+15\right).0=0\)
Vậy.................
Chúc bạn học tốt!!!