Question

Calculati valoarea expresiei 4(x+y+z)-5(x+y+z)+6(x-y-z) pentru
a)x egal -3; y egal -4 ;z egal -5
b) x egal 3; y egal-4 ; z egal 5
c)x egal -10 ; y egal +4; z egal 6

Answer 1

a}=-12*4+{-12*-5}+36=-48+60+36=48
b}=16-20+12=8
c}=0-0+6+{-20}=-14