PLEASE HELP! I am going crazy.

If x+y=1, x^2+y^2=4, x^3+y^3=?

^x=exponent

Lol, first day of Advanced Algebra and Trig and I feel like I'm lost -___-

Please explain slowly.

If x+y=1, x^2+y^2=4, x^3+y^3=?

^x=exponent

Lol, first day of Advanced Algebra and Trig and I feel like I'm lost -___-

Please explain slowly.