tolong bangget susah menurut sayaaampe binggung soal nya

(ab*-1 – a*-1b)/((ab)*-2
=(a/b – b/a)/(1/(ab)*2)
=((a*2 – b*2)(ab)*2)/(ab)
=a*3b – ab*3

[tex] = \frac{a. \frac{1}{b} - \frac{1}{a} .b }{ \frac{1}{(ab)^{2} } } \\ = \frac{ \frac{a}{b} - \frac{b}{a} }{ \frac{1}{( {ab})^{2} } } \\ = \frac{ \frac{ {a}^{2} }{ab} - \frac{ {b}^{2} }{ab} }{ \frac{1}{( {ab})^{2} } } \\ = \frac{ \frac{ {a}^{2} - {b}^{2} }{ab} }{ \frac{1}{ {(ab)}^{2} } } \\ = \frac{ {a}^{2} - {b}^{2} }{ab} \times \frac{ {(ab)}^{2} }{1} \\ = ({a}^{2} - {b}^{2} ) \times ab \\ = {a}^{3} b - a {b}^{3} [/tex]
Semoga dapat dipahami