Question

У простите выражения:
a) -0.6a× 0.75b×(-c)
б)-(2a-3)+(4a-2)
в) 4(1.25х-0.9y)-3x+4.6y

Answer 1

a) -0.6a× 0.75b×(-c)=0,6а*0,75b*c=0.45*a*b*c
б)-(2a-3)+(4a-2)=-2a+3+4a-2=1+2a
в) 4(1.25х-0.9y)-3x+4.6y=5x-3.6y-3x+4.6y=2x+1.6y