Question

решить уравнение x/x-1+x+1/x+3=1/(x-1)*(x+3)

Answer 1

x/(x-1) +1/(x+3)=1/(x-1)(x+3)
x≠1 U x≠-3
x²+3x+x²-1-1=0
2x²+3x-2=0
D=9+16=25
x1=(-3-5)/4=-2
x2=(-3+5)/4=1/2