Question

if x+y =3, xy=2, what is the value of x³+y³? ​

Answer 1

Answer:

X3 +y3=9

Step-by-step explanation:

consider X =1 and Y=2

now in first equation if we put values we get answer. similarly if we put values in question we get answer 9 as cube of 1 is 1 and cube of 2 is 8. Thank you.

Answer 2

Answer:

${x}^{3} + {y}^{3} = 27$

Step-by-step explanation:

${x}^{3} \ + {y}^{3} = {(x + y)}^{3} + 3xy(x + y) \\ = {(3)}^{3} + 3 \times 2(3) \\ = 9 + (6 \times 3 ) \\ = 9 + 18 \\ = 27 \\ \\ \\ {x}^{3} + {y}^{3} = 27$

I hope it will help u .