If x3 + y3 = 152
x + y = 8
Find the value of xy.
Answer & explanation
Correct answer: option 3
x3 + y3 = 152
x + y = 8
(x + y)3 = x3 + y3 + 3xy (x + y)
512 = 152 + 24xy
xy = \(\frac{360}{24}\)
xy = 15
If x3 + y3 = 152
x + y = 8
Find the value of xy.
Correct answer: option 3
x3 + y3 = 152
x + y = 8
(x + y)3 = x3 + y3 + 3xy (x + y)
512 = 152 + 24xy
xy = \(\frac{360}{24}\)
xy = 15