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