Question

plz maths genius ans this question in long​

Answer 1

= 8a³+12a²+6a+2

When, x = ½

= 8(½)³+12(½)²+6×½+2

= 8×⅛+12×¼+6×½+2

= 1+3+3+2

= 9

Answer 2

Answer:

1+3+3+2=9.

I hope it's help you...