Question

factor: y^3+27

Answer 1

Hint:

y^3+27

y^3+3^3

Now use the sum of cubes factoring rule

Answer 2

right and i get (y-3)(y^2+3y+3^2)

Answer 3

the sum of cubes factoring formula is

x^3+y^3=(x+y)(x^2-xy+y^2)

Answer 4

so you have your signs mixed up

Answer 5

damn... ok so it would be (y+3)(y^2-3y+3^2)

Answer 6

which becomes

(y+3)(y^2-3y+9)

after you square that last 3

Answer 7

oh ok you can't leave it squared. thank you!!!

Answer 8

you can still factor it..

Answer 9

not over the rationals

Answer 10

it does not say in R (: