Math Olympiad. Fast solution @mershscore

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How to Solve Cubic Equations Fast
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Very easy
x³=x²+2x
x³-x²=2x
x(x²-x)=2x
x²-x=2
x²-x-2=0
By quadratic formula
x=-1 or x=2
But since we reduced a cubic equation to quadratic
x=0

There are all 3 solutions

Kambyday