⅓ z(-2/9 z²)= ¼ x²(-⅗ x²)= ⅕y⁵(-5/7y⁸)= z¹⁰×z×z⁵×z⁸= x⁵×x⁰×x×x¹⁰=
⅓ z(-2/9 z²)=
¼ x²(-⅗ x²)=
⅕y⁵(-5/7y⁸)=
z¹⁰×z×z⁵×z⁸=
x⁵×x⁰×x×x¹⁰=
⅓ z(-2/9 z²)=-2/27z³ ¼ x²(-⅗ x²)=-3/20x⁴ ⅕y⁵(-5/7y⁸)=-1/7y¹³ z¹⁰×z×z⁵×z⁸=z²⁴ x⁵×x⁰×x×x¹⁰=x¹⁶