find the value of a if x-a is a factor of x³-ax²+2x+a-1
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Step-by-step explanation:
If x-a is a factor then, f(a)=0
f(x)=x³-ax²+2x+a-1
f(a)=a³-a³+2a+a-1=0
3a-1=0
a=1/3
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