2 is a zero of p(x)=ax²-3(a-1)x-1 then find the value of a.
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put x=2
4a-6(a-1)-1=0
-2a+6-1=0
2a=5
a=5/2
4a-6(a-1)-1=0
-2a+6-1=0
2a=5
a=5/2
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