Exercise algebra.inequalities.quadratic
Description
solve a quadratic inequation
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
0 == 2*x^2-3*x-14
⇒ algebra.equations.linear.flip2*x^2-3*x-14 == 0
⇒ algebra.equations.quadratic.abc, clipboard=[D == 121, a == 2, b == -3, c == -14]x == 7/2 or x == -2