3³×9^(m+4)÷27^(2m-1)
= 3³×(3^2)^(m+4)÷(3^3)^(2m-1)
= 3³×3^[2×(m+4)]÷3^[3×(2m-1)]
= 3³×3^(2m+8)÷3^(6m-3)
= 3^[3+2m+8-(6m-3)]
= 3^[3+2m+8-6m+3]
= 3^(14-4m)
3³×9^(m+4)÷27^(2m-1)
= 3³×(3^2)^(m+4)÷(3^3)^(2m-1)
= 3³×3^[2×(m+4)]÷3^[3×(2m-1)]
= 3³×3^(2m+8)÷3^(6m-3)
= 3^[3+2m+8-(6m-3)]
= 3^[3+2m+8-6m+3]
= 3^(14-4m)