If 9x2 + y2 = 37, xy = 2 (x, y > 0)
find 27x3 + y3 + 50.
Answer & explanation
Correct answer: option 2
By Putting x = 2 and y = 1
These values are satisfying the equations:
⇒ 9x2 + y2 = 37
⇒ 9(2)2 + (1)2 = 37
⇒ 37 = 37
Put these values and find:
⇒ 27x3 + y3 + 50 = 27(2)3 + (1)3 + 50 = 216 + 1 + 50 = 267