Exercise algebra.equations.quadratic.no-abc

Description
solve a quadratic equation without abc-formula

Derivation

6 == 14-2*x^2
algebra.equations.coverup.onevar.minus-right
8 == 2*x^2
algebra.equations.coverup.times
4 == x^2
algebra.equations.coverup.power
2 == x or -2 == x
algebra.equations.linear.flip
x == 2 or -2 == x
algebra.equations.linear.flip
x == 2 or x == -2