Exercise algebra.equations.quadratic.no-abc

Description
solve a quadratic equation without abc-formula

(x+1)*(x-4) == 0

ready: no

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Path 1

path	[0, 7, 8, 0, 7, 12, 0, 0, 3]
steps	9
major rules	3
active labels	quadraticequationstrategy generalform