## anonymous 3 years ago Physically what does it mean if the solution of quadratic equation are complex numbers?

1. UnkleRhaukus

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

2. anonymous

is it it have no solution

3. UnkleRhaukus

complex solutions are solutions

4. UnkleRhaukus

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. anonymous

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