Question

if x+y=6and xy= 2find the value of x cube +y cube​

Answer 1

Step-by-step explanation:

Given that

x+y=6 and xy=2

we know

(x+y)^3=x^3+y^3+3xy(x+y)

Therefore

6^3=x^3+y^3+3×2×6

216=x^3+y^3+36

x^3+y^3=216-36

x^3+y^3=180.