Question

pls solve it........

Answer 1

x^8 - 256 = (x^4)2 - (2^4)^2

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

                = (x^4 + 16)(x^4 - 16)

Answer 2

${x}^{8} - 256$

$= ({x}^{4} - 16) \times ( {x}^{4} + 16)$

$= ( {x}^{2} - 4) \times ( {x}^{2} + 4) \times ( {x}^{4} + 16)$

$= (x - 2) \times (x + 2) \times ( {x}^{2} + 4) \times ( {x}^{4} + 16)$