If √2ⁿ = 64, then the value of n is:

The value of √0.121 is:

The square root of (7 + 3√5)(7-3√5) is:

If a = 0.1039, then the value of √4a²-4a+1 +3a is 

(21 .35)² +(12.25)² =?

If x²-1/x+1=4,  x=?

The value of (log₉ 27+log₈ 32) is

If x²+y²+z²-64/xy-yz-zx=-2and x + y = 3z, then the value of z is:

√7921 *51+374 = (?)³

If log₁₀ 5+ log₁₀ (5x+1)= log₁₀ (x+5)+1, then x is equal to