Consider the equation x(x-1)(x-2)(x-3)=840(adsbygoogle = window.adsbygoogle || []).push({});

One way to do it is to find factors of 840. By trial and error, 7 which is a factor of 840 satisfies the equation.

Another way is to graph both sides of the equation and find the intersection which is 7.

Is there an easier way to find the answer without using the graphing calculator and the trial and error method?

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# Is there an easier way to do it?

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