Exercise algebra.inequalities.quadratic

Description
solve a quadratic inequation

Derivation

x^2-3/2*x-7 == 0

⇒ algebra.equations.quadratic.simpler-poly

2*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