If 12 # 34 = 14 and 67 # 88 = 106, then 45 # 67 =

If (a + b) = 7 and ab = 9, then find the value of (a² + b²).

If a – b – c = 0, then the value of (a² + b² + c²)/(b + ac) is:

If x = 6 + 2√5, then the value of √x - (1/√x)?

If (a + b + c) = 18 and (ab + bc + ca) = 100, then find the value of (a² + b² + c²).

If (2a + b)/(3b - 2b) = 13/2 then 'b' is what percent of 'a'?

If p = 28 - q - r and pq + r(q + p) = 182, then find the value of (p² + q² + r²).

 `sqrt(sqrt(10+sqrt(10+sqrt(10)) ... prop)`   = ?

If (p/q) = (7/8) and (q/r) = (3/11), then the find the value of {(r – p)/(p + q)}.

If 10x² – 6xy+y² – 4x+4= 0, then find the value of (3x+2y).