If (x + 6y) = 8, and xy = 2, where x>0, what is the value of (x3 + 216y3)?
Answer & explanation
Correct answer: option 2
If (x + 6y) = 8
xy = 2
what is the value of (x3 + 216y3)
If (x + 6y) = 8
(x3 + 216y3) = 83 - 3 × 8 × 2 × 6 = 224
If (x + 6y) = 8, and xy = 2, where x>0, what is the value of (x3 + 216y3)?
Correct answer: option 2
If (x + 6y) = 8
xy = 2
what is the value of (x3 + 216y3)
If (x + 6y) = 8
(x3 + 216y3) = 83 - 3 × 8 × 2 × 6 = 224