Exercise algebra.inequalities.quadratic
Description
solve a quadratic inequation
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
(x+3/2)^2 == 25/4
⇒ algebra.equations.coverup.powerx+3/2 == 5/2 or x+3/2 == -5/2
⇒ algebra.equations.coverup.onevar.plusx == 1 or x+3/2 == -5/2
⇒ algebra.equations.coverup.onevar.plusx == 1 or x == -4