Exercise algebra.inequalities.quadratic
Description
solve a quadratic inequation
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
2*x^2+6*x-10 > x^2+2*x-5
⇒ algebra.inequalities.to-equation, clipboard=[ineq == (2*x^2+6*x-10 > x^2+2*x-5)]2*x^2+6*x-10 == x^2+2*x-5
⇒ algebra.equations.quadratic.move-leftx^2+4*x-5 == 0
⇒ algebra.equations.quadratic.nice-factors(x-1)*(x+5) == 0
⇒ algebra.equations.quadratic.product-zerox == 1 or x == -5
⇒ algebra.inequalities.give-solution, clipboard=[]x < -5 or x > 1