Question

Решите уравнение х^2/х+3=2х+3/х+3

Answer 1

X^2/x+3= 2x+3/x+3
×(x+3)
x^2=2x+3
X^2-2x-3= 0
D= b^2-4ac
D= 16
x1= -b-√D÷2a
x1= -(-2)-√16/2
x1= -1
x2= -b+√D/2a
x2= -(-2)+√16/2
x2= 3