Which of the following is a depreciation method that is

if 3y-3/y=8 then find the value of y ² +1/y² 

If x −y =4and xy =45,thenthevalueof x ³ −y³is:

If x =7+4√3. then find the value of x +1/ x

Find the value of the given expression-

(4^x+4 -5× 4^x+2) / 15×4^x – 2²×4^x

If (x + y) = 35, then find the value of (x - 10)⁶ + (y - 25)⁶.

When 732 is divided by a positive integer x, the remainder is 12. How many values of x are there?

If a + b + c = 6, a² + b² + c² = 14 and ab + bc+ ca = 11, then what is the value of a³ + b³ +c³ –3abc?

If a² + c² + 17 = 2(a - 8b - 2c²), then what is the value of (a³ + b³ + c³)?

[a/(2a²  + 5a + 2)] = 1/6 , then find the value of (a+1)/a ?