Which of the following bank has recently launched

If 27x³ - 8y³ = (3x - Ay) X (Bx² + 4y² + Cxy), then find the value of 3 X (2A + 6B) - 2C.

If x = √7 + √6 and y = √7 - √6 , then the value of is (x² + y²)/(x³ + y³).

If 9 : 12 :: 12: x, and 28: 42:: 42: y, then the value of 2x + y is: 

If a = 2 + √3, then the value of (a⁶ + a⁴ + a² + 1)/a³ is

What is the value of (a² + b²+4c²- ab-2bc-2ca) (a + b+2c):

If {x + (1/x)} = 4, then find the value of {x² + (1/x²)}

If a+1/a =9, then a⁵+1/a⁵ is equal to:

If √k + (1/√k) = 8, then find the value of k + (1/k).