Exercise algebra.equations.quadratic.no-abc
Description
solve a quadratic equation without abc-formula
Derivation
Final term is not finished
-3 == 2*x or 6-2*x == -9
⇒ algebra.equations.coverup.times-3/2 == x or 6-2*x == -9
⇒ algebra.equations.linear.flipx == -3/2 or 6-2*x == -9