Question

simplify a(a2+a+1+) 5 and find its value for a=2 ?​

Answer 1

= a(a2+a+1) 5

= if a=2

= 2[(2)2+2+1]5

= 2(7) 5

= 2(35)

= 70

* 70 is the value of a(a2+a+1) 5 if a=2