Step 1: Divide the numerical coefficients.
412=3
Step 2: Simplify the variable a using the rule xnxm=xm−n.
aa2=a2−1=a1=a
Step 3: Simplify the variable b using the rule xnxm=xm−n.
bb=b1−1=b0=1
Step 4: Combine the simplified parts.
3⋅a⋅1=3a
The simplified expression is:
4ab12a2b=3a
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