If x3 + y3 = 468
x + y = 12
Find the value of xy.
Answer & explanation
Correct answer: option 4
x3 + y3 = 468
x + y = 12
(x + y)3 = x3 + y3 + 3xy (x + y)
1728 = 468 + 36xy
xy = \(\frac{1260}{36}\)
xy = 35
If x3 + y3 = 468
x + y = 12
Find the value of xy.
Correct answer: option 4
x3 + y3 = 468
x + y = 12
(x + y)3 = x3 + y3 + 3xy (x + y)
1728 = 468 + 36xy
xy = \(\frac{1260}{36}\)
xy = 35