Exercise algebra.equations.quadratic.no-abc
Description
solve a quadratic equation without abc-formula
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
(3*x-6)*(x+6) == 12*x
⇒ algebra.equations.linear.distr-times3*x^2+12*x-36 == 12*x
Description
solve a quadratic equation without abc-formula