Respuesta :

Answer:

Step-by-step explanation:

a³-b³=(a-b)(a²+ab+b²)

6³-1=6³-1³=(6-1)(6²+6*1+1²)=5×43

so 6³-1 is divisible by 5.

BasketballEinstein

[tex]\displaystyle 6^3 - 1 = 216 - 1 = 215[/tex]

The number 215 is divisible by 5 because it ends in 5, according to the divisibility rules.

I am joyous to assist you anytime.

Q&A Education