Maths Powers - (x + y)^3?

Question

the expanded for of (x + y)^3

Answer 1

x^3 + 3x^2 y + 3x y^2 + y^3

I expanded Pascal's Triangle or you could multiply (x + y) (x + y)

FOIL and simplify, then multiply the result by (x + y) again

Good luck to you !!

Answer 2

-x^3-y^3

Answer 3

x^3 + 3x^2y + 3xy^2 + y^3

Answer 4

(x+y)3 = 1x^3 + 3x^2 *y + 3xy^2 + 1y^3

see thsi website linking this work to pascals/ chinese triangle

http://mathforum.org/workshops/usi/pasca...