x1= 3, x2= -1, x3=-3
Объяснение:
1) x²+x=3x+3
x²-2x-3=0
D= 4+12= 16
x1= (2+4)/2= 3
x2= (2-4)/2= -1
2) x²+x= -3x-3
x²+4x+3=0
D= 16-12= 4
x3= (-4+2)/2= -1
x4= (-4-2)/2= -3
x1= 3, x2= -1, x3=-3
Объяснение:
1) x²+x=3x+3
x²-2x-3=0
D= 4+12= 16
x1= (2+4)/2= 3
x2= (2-4)/2= -1
2) x²+x= -3x-3
x²+4x+3=0
D= 16-12= 4
x3= (-4+2)/2= -1
x4= (-4-2)/2= -3