Question

I need to factor x^3+27

Answer 1

Didnt someone explain this to you already?

Answer 2

Idk, I typed it in wrong to begin with so I thought I would fix it

Answer 3

okay well what do you notice about these two terms

Answer 4

just apply the rule

Answer 5

27 has a cube root of 3

Answer 6

Apply what rule?

Answer 7

a^3+b^3=(a+b)(a^2-ab+b^2)

Answer 8

sum of cubes

Answer 9

I don't know that rule... And so a=x and b=3?

Answer 10

ok the rule of sum of 2 cubes :x^3+b^3=(x+b) (x^2 -xb+b^2)

Answer 11

yes

Answer 12

yes!

Answer 13

YAY! Thank you! I have one more question.

Answer 14

okay! :)

Answer 15

My final result is (x+3)(x^2-3x+9) is that right???

Answer 16

yes its true!!! :)

Answer 17

YAY! Thank you!