Teaching REET Mock Test Series 2024-25 Level 1 & 2 (Hindi-Sanskrit-English) Quantitative Aptitude Algebra Identities

যদি x + y + z = 9, x2 + y2 + z2 = 31 হয়, হলে, x3 + y3 +z3 - 3xyz = ?

1
54
2
45
3
48
4
64
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