Substitute a=1/2 and b=1 into the expression:
-3, 2(1/2)²(1)³-3, 2(1/4)(1)-3, 2(1/4)-3, 1/2
Therefore, the simplified expression is -3, 1/2.
Substitute a=1/2 and b=1 into the expression:
-3, 2(1/2)²(1)³
-3, 2(1/4)(1)
-3, 2(1/4)
-3, 1/2
Therefore, the simplified expression is -3, 1/2.