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Factor using the identity: a3 + b3 = (a + b)(a2 – ab + b2)

z3 + 8

(z + 2)(z2 – 2z + 4)?

(z + 2)3?

(z3 + 8)(z2 – 8z3 + 64)?

(z + 8)(z2 – 8z + 64)?

Respuesta :

nobillionaireNobley
Given the identity

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

Then

[tex]z^3 + 8=z^3+2^3 \\ \\ =(z+2)(z^2-2z+2^2) \\ \\ =(z+2)(z^2-2z+4)[/tex]

Answer:

the answer is A

Step-by-step explanation:

got it right on the assignment

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