Question

0,6*(1,8х-5,6y)-3,8(4,6x+2y) якщо x=4 а y = -3,4

Answer 1

0,6*(1,8х-5,6y)-3,8(4,6x+2y)= 1,08х -3,36y - 17,48x-7,6y= -16,4x-10,96y= -16,4*4-10,96*(-3,4)= -65,6+37,264=-28,336