Question

(-3,2)×(pk-1/2k)-5(pk)=если P=-3/5, k=-1
2/3

Answer 1

$(-3,2)*(pk-frac{1}{2} k)-5pk=-3,2pk+1,6k-5pk=-8,2pk+1,6k$

$-8,2*(-frac{3}{5} )(-1frac{2}{3} )+1,6*(-1frac{2}{3} )=-frac{41}{5} *frac{3}{5}* frac{5}{3} -frac{8}{5} *frac{5}{3} =-frac{41}{5} -frac{8}{3} =frac{-123-50}{15}= -frac{163}{15}=-10frac{13}{15}$