Exercise algebra.equations.quadratic.no-abc
Description
solve a quadratic equation without abc-formula
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
x == (6+sqrt 52)/2 or x == (6-sqrt 52)/2
⇒ algebra.equations.quadratic.simpler-sqrtx == 3+sqrt 13 or x == 3-sqrt 13
Description
solve a quadratic equation without abc-formula