If y=1+5^1/3+5^2/3, then find the value of y^3-3y^2-12y+6.
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Step-by-step explanation:
y=1+5^1/3+5^2/3
1+5/3+25/3
1+5/28/3
1+15/28
=16/28
=4/7
the value of y is =4/7
put in value ,y =4/7
4/7^3-3×4/7^2-12×4/7+6
64/343-4849-48/7+6
-569/343
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