From the given alternatives select the word which cannot

If (x² + y²) = 9 and (xy)² = 3, then find the value of (x⁴ + y⁴).

√4096 + √(?) + 13 – 29 = 148 

If √r + (1/√r) = 4, then find the value of r + (1/r).

If x = 99, then the value of x⁵ - 100x⁴ + 100x³ - 100x² + 100x - 1 is

Find the value of

(1 -  `1/(p+1)` ) + (1 - `2/(p+1)`  ) + (1 - `3/(p+1)`  ) + ........................... + (1 -  `p/(p+1)` )

If a + b + c = 8, a² + b² + c² = 18 and ab + b c+ ca = 12, then what is the value of a³ + b³ +c³ –3abc?

If (a + b) = 9 and (a² + b²) = 53, then find the value of (a × b).