Question

Simplify a (a² +a +1)+5 and find its value fo
(i) a=1/2
(ii) a=-2​

Answer 1

here is your answer

hope it helps....

Answer 2

Step-by-step explanation:

a(a²+a+1)+5

a³+a²+a+5

i> a=1/2

(1/2)³+(1/2)²+(1/2)+5

=⅛+¼+½+5

=⅞+5

=47/8

ii> a=-2

= (-2)³+(-2)²+(-2)+5

= -8+4-2+5

=-10+9

=-1