sederhana kan kk kurang ngerti ni..bingung

b. (x⁵y⁴) : (x³y²) = x⁵⁻³ y⁴⁻² = x²y²

c. (m⁴)⁵ = m⁴ˣ⁵ = m²⁰

d. [tex]( a^{ \frac{2}{5} } ).( a^{ \frac{1}{2}) } = a^{ \frac{2}{5}+ \frac{1}{2} } =a^{ \frac{4}{10}+ \frac{5}{10} } = a^{ \frac{9}{10} } [/tex]