=-3/26(-15/29-2/19)
=-3/26*(-17/19)
=3/26*17/19
=51/494
\(-\dfrac{3}{26}.\left(-\dfrac{15}{19}\right)-\dfrac{2}{19}.\left(-\dfrac{3}{26}\right)\)
\(=-\dfrac{3}{26}.\text{[}\left(-\dfrac{15}{19}-\dfrac{2}{19}\right)\)
\(=-\dfrac{3}{26}.\left(-\dfrac{17}{19}\right)\)
=\(\dfrac{51}{494}\)
=-3/26(-15/29-2/19)
=-3/26*(-17/19)
=3/26*17/19
=51/494