1) 3bx - 3by = 3b(x - y)
2) - 5t - 15tk = - 5t - 5t * 3k = - 5t( 1 + 3k)
3) 4a² + 12a = 4a * a + 4a * 3 = 4a( a + 3)
Объяснение:
1) 3bx - 3by = 3b(x - y)
2) - 5t - 15tk = - 5t - 5t * 3k = - 5t( 1 + 3k)
3) 4a² + 12a = 4a * a + 4a * 3 = 4a( a + 3)
Объяснение: