If the quadratic equation x² + 18x + n = 0 has real and

Solve for x:

(2x − 1)/3 − (x − 4)/2 = 3

If √p + (1/√p) = 12, then find the value of p + (1/p).

If, ( a + b = 20 ) and ( a² + b² = 208 ), then find the value of (a³ + b³).

A company’s expenditure on three departments over four years is as follows (in thousands):

If p = 40 - q - r and pq + r(q + p) = 432, then find the value of (p² + q² + r²).

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

If x = 21, then the value of x⁵ - 22x⁴ + 22x³ - 22x² + 22x - 1 is

 `sqrt(sqrt(17+sqrt(17+sqrt(17)) ... prop)`   = ?

if √1+x/121 = 13/11 then find the value of x.