for starters: Please practice presenting polynomial expressions properly.
x3+8 is equal too (x+2)(x2-2x+4
should be written as "x^3 + 8 is equal to (not too) (x+2)(x^2 - 2x + 4).
You don't share the instructions. I suspect you are to respond "true" or "false."
It happens that x^3 + 8 equals x^3 + 2^3, which is the sum of two cubes.
There is a formula for the "sum of two cubes:"
It is a^3+b^3 = (a^2 - ab + b^2)(a+b).
Therefore, x^3 + 2^3 = (x+2)(x^2 -2x + 2^2), or (x+2)(x^2 - 2x + 4).
