Exercise algebra.inequalities.quadratic

Description
solve a quadratic inequation

Derivation

0 == 2*x^2-3*x-14
algebra.equations.linear.flip
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