2 is not a zero of ( y) = y3 - 9 y2 + 27 y - 27
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Step-by-step explanation:
Firsy check
Put y = 2 in eq.
(2)^3 - 9(2)^2+ 27(2) -27
=8 - 36 + 54 - 27
= -63 + 62
= -1
So 2 is not a zero of given equation.
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