Question

If x+y=12, xy=27.find the value of x³+y³

Answer 1

Answer:

Step-by-step explanation:

(x+y)³ = x³ + y³ + 3xy (x+y)

Now, apply the given values -

(12)³ = x³ + y³ + 3 × 27 × (12)

1728 = x³ + y³ + 972

x³ + y³ = 1728 - 972 = 756