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If alpha satisfies the equation x^(2)+x+...

If `alpha` satisfies the equation `x^(2)+x+1=0` and `(1+alpha)^(7)=A+B alpha+C alpha^(2)`,
`A,B,C ge 0` , then `5(3A-2B-C)` is equal to

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JEE MAINS PREVIOUS YEAR-JEE MAIN 2024 ACTUAL PAPER-Question
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