Решите ПЛИЗ. 15²+12²:4 (15+12:4)² (900:9-600:60)³

Question

Решите ПЛИЗ.
15²+12²:4
(15+12:4)²
(900:9-600:60)³

Answer 1

1) 225+144:4=225+36=261
2)(15+3)²=18²=324
3) (100-100)³=0.