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

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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.

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