Question

8 * (1,4х + 13,6у) + 13 * (0,8х - 0,6у) при х = 1 у =1

Answer 1

8 * (1,4х + 13,6у) + 13 * (0,8х - 0,6у) =\

$=<var>8*15+13*0.2</var>$=122.6