solve P(x,3)=6*C(x,4)

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P(x,3)=x(x-1)(x-2); 6C(x,4)=6x(x-1)(x-2)(x-3)/24=x(x-1)(x-2)(x-3)/4.

If P(x,3)=6C(x,4), then (x-3)/4=1, x-3=4, x=7.
by Top Rated User (1.2m points)

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