Respuesta :

The polynomial x3+8 is equal to (x+2)(x2-2x+4)

Hope this helps:)
Limosa

Answer:

[tex]x^{3} +2^{3}=(x+2)(x^{2} -2x+2^{2} )[/tex]

Step-by-step explanation:

The general expansion of a polynomial of type [tex]a^{3} +b^{3}[/tex] is given as follows:

[tex]a^{3} +b^{3} =(a+b)(a^{2} -ab+b^{2} )[/tex]

Given polynomial is [tex]x^{3} +8[/tex]

This can be written as [tex]x^{3} +2^{3}[/tex], which is of the form  [tex]a^{3} +b^{3}[/tex].

So we can use the general form to expand this polynomial where;

a→x

b→2

[tex]x^{3} +2^{3}=(x+2)(x^{2} -x\times2+2^{2} )[/tex]

[tex]x^{3} +2^{3}=(x+2)(x^{2} -2x+2^{2} )[/tex]