If 9x2 + y2 = 37 and xy = 2, x, y > 0, then the value of (27x3 + y3) is:

Answer: Option B

xy = 2
2 × 1
1 × 2
at x = 2, y = 1
9x² + y² = 37
9 × 4 + 1 = 37
37 = 37 it satisfy
27x³ + y³
= 27 × 2³ + 1³
= 27 × 8 + 1
= 217