Saline soils occur mostly

((99.9 - 20.9)² + (99.9 + 20.9)² )/(99.9 x 99.9 + 20.9 x 20.9) = ?

  `sqrt(sqrt(6+sqrt(6+sqrt(6)) ... prop)`   = ?

If x = 15

find x ⁵ - 16 x ⁴ + 16 x ³ - 16 x ² + 16 x  - 16 = ?

If (a + b) = 7 and ab = 11, then find the value of (a² + b²).

√(9²×8 ×5²+700) = ?

Solve the system:

x + 2y = 13

3x − y = 5

What is the value of 2x + y?

If [x + (1/x)] = 3, find [x² + (1/x²)].

(15 x 15 x 15 + 8 x 8 x 8)/(15 x 15 -15 x 8 + 8 x 8) = ?

If (x+1/x)² = 3 Then the value of

x⁹⁶ + x⁶⁶ + x⁴² + x¹⁸ + x¹² + 1 is

Find the number of zeroes in 24 × 50 × 64 × 15.