First, substitute a = 0.5 into the expression:
2(0.5)^3 + 9 - (0.5 + 1)(0.5^2 - 0.5 + 1)2(0.125) + 9 - (1.5)(0.25 - 0.5 + 1)0.25 + 9 - (1.5)(0.75)0.25 + 9 - 1.1250.25 + 9 - 1.1259.125 - 1.1258
Therefore, the value of the expression when a = 0.5 is 8.
First, substitute a = 0.5 into the expression:
2(0.5)^3 + 9 - (0.5 + 1)(0.5^2 - 0.5 + 1)
2(0.125) + 9 - (1.5)(0.25 - 0.5 + 1)
0.25 + 9 - (1.5)(0.75)
0.25 + 9 - 1.125
0.25 + 9 - 1.125
9.125 - 1.125
8
Therefore, the value of the expression when a = 0.5 is 8.