Question

factor (x^3+27)

Answer 1

These are the formulas to use for sum and difference of cubes

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

Which of the two are like your problem?

Answer 2

the first one

Answer 3

So you find the cube root of 27 and then substitute into the formula where they belong

so a is x
and b is cube root of 27 which is what?

Answer 4

3

Answer 5

Exactly, good job @annej.
So what is your answer?

Answer 6

im not sure

Answer 7

Substitute
a with x
and
b with 3 in the formula

Answer 8

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

Answer 9

Good Job!

Answer 10

ok thnxs
:D