1) (- a⁴bc) * 7ab³c = - 7a⁴⁺¹b¹⁺³c¹⁺¹ = - 7a⁵b⁴c²
2) 16x⁴y⁶ = (4x²y³)²
3) (n²m)³ * (nm³)² = n⁶m³ * n²m⁶ = n⁶⁺²m³⁺⁶ = n⁸m⁹
1) (- a⁴bc) * 7ab³c = - 7a⁴⁺¹b¹⁺³c¹⁺¹ = - 7a⁵b⁴c²
2) 16x⁴y⁶ = (4x²y³)²
3) (n²m)³ * (nm³)² = n⁶m³ * n²m⁶ = n⁶⁺²m³⁺⁶ = n⁸m⁹