## Raja99 Group Title Physically what does it mean if the solution of quadratic equation are complex numbers? one year ago one year ago

1. UnkleRhaukus Group Title

so the roots are not real, this means that the curve does not cut the x axis

2. Raja99 Group Title

is it it have no solution

3. UnkleRhaukus Group Title

complex solutions are solutions

4. UnkleRhaukus Group Title

for example $x^2+1=0$ $x=\frac{-0\pm\sqrt{0^2-4(1)(1)}}{2}$$x=\frac{\pm2i}2=\pm i$ if we plot $y(x)=x^2+1=0$ |dw:1354618723421:dw|

5. akkib89 Group Title

It means you have entered the 5th dimension. Watch out for aliens.