Question

Which of the following is Quadratic equation: *
1 point
x(x²+1)=1
x-1/x=2
x²-2x+5=x²
x+5=2x​

Answer 1

Answer:

1) IS NOT A QUADRARIC EQUATION

2)IS NOT A QUADRARIC EQUATION

3)IS NOT A QUARARIC EQUATION

4)IS NOT A QUADRARIC EQUATION