Using the foil method,multiply....(2/5t-1)(3/5+1)

( 3 / 5 + 1 ) = 3 / 5 + 5 / 5 = 8 / 5

( 2 / 5 t - 1 ) * ( 3 / 5 + 1 ) =

( 2 / 5 t - 1 ) * 8 / 5 =

( 2 * 8 ) / ( 5 t * 5 ) - 1 * 8 / 5 =

16 / 25 t - 8 / 5