if x-2 is a factor of x cube - 3x +5a then the value of "a" is _____
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Step-by-step explanation:
Since x-2 is a factor of x cube-3x+5a,
We'll get 0 when we substitute x with 2
Therefore,2 cube -3×2+5a =0
8-6+5a=0
2+5a=0
5a=-2
a=-2/5
So,the value of a is -2/5
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