Question

can x^3 + 8 be factorised? if so it is using
a3 + b3 = (a + b)(a2 – ab + b2)?

Answer 1

(x-2)(x^2 + 2x + 4)

Answer 2

But the question is x^3 + 8 not minus?

Answer 3

yes, and your are correct,a=x and b=2

Answer 4

*you

Answer 5

Well i was looking to find it in factored from not the answer

Answer 6

form*

Answer 7

yeah, i didn't give any answer...
factored form will be ... ?

Answer 8

x^3+2^3 = (...+...)(....-....+...)

Answer 9

Well the formula are as follows,

\[a^3 + b^3 = (a + b)(a^2 – ab + b^2)\]

\[a^3 - b^3 = (a - b)(a^2 + ab + b^2)\]

Answer 10

(x+2)(x^2- 2 + 4)
Is this right?

Answer 11

the 2nd term in 2nd bracket is incorrect.

Answer 12

i mean 2x opps (x+2)(x^2- 2x + 4)

Answer 13

yeah, now correct....

Answer 14

Yeah right

Answer 15

thanks

Answer 16

Your'e welcome.