Exercise algebra.inequalities.quadratic

Description
solve a quadratic inequation

Derivation

x^2-x+1/4 == 49/4

⇒ algebra.equations.quadratic.left-square

(x-1/2)^2 == 49/4

⇒ algebra.equations.coverup.power

x-1/2 == 7/2 or x-1/2 == -7/2

⇒ algebra.equations.coverup.onevar.minus-left

x == 4 or x-1/2 == -7/2

⇒ algebra.equations.coverup.onevar.minus-left

x == 4 or x == -3