уравнения:
(4х+3)*(х-9)=0 ; (5х+3)*(х-7)=0

|x-5|=4

|x+5|=3

▪(4х+3)*(х-9)=0 1) 4х+3=0 4х= -3х= -3/4х1= -0,75------------2) х-9=0х2=9----------▪(5х+3)*(х-7)=01) 5х+3=05х= -3х1= -3/5х1= -0,6-----------2) х-7=0х2=7-----------▪|x-5|=41) х-5=4х=4+5х1=9--------2) 5-х=4-х=4-5-х= -1х2=1--------▪|x+5|=31) х+5=3х=3-5х1= -2--------2) х+5= -3х= -3-5х2= -8----------