(s-t)²(t-s)[-(t-s)³]=__________________

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(s-t)²(t-s)[-(t-s)³]=__________________

(s-t)²(t-s)[-(t-s)³]=__________________
(s-t)²(t-s)[-(t-s)³]=__________________

(s-t)²(t-s)[-(t-s)³]=__________________
-(t-s)^6