(-⅓m²)(-24n)(4nm)(-3x³y)²
8m²n×4nm×9x∧6y²=32m³n²×9x∧6y²=278m³n²x∧6y²
(-⅓m²)(-24n)(4nm)(-3x³y)²=8m^2×n×4nm×9x^6×y^2=32m^3×n^2×9x^6×y^2=278m^3×n^2×x^6×y^2.