Exercise algebra.equations.quadratic.no-abc

Description
solve a quadratic equation without abc-formula

Derivation

x^2-5*x+25/4 == 25/4

⇒ algebra.equations.quadratic.left-square

(x-5/2)^2 == 25/4

⇒ algebra.equations.coverup.power

x-5/2 == 5/2 or x-5/2 == -5/2

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

x == 5 or x-5/2 == -5/2

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

x == 5 or x == 0