64a^3+(2-a)^3 помогите

Question

64a^3+(2-a)^3 помогите

Answer 1

64а³+(2-а)³=(4а)³+(2-а)³=(4а+2-а)(16а²-8а+4а²+4-4а+а²)=(3а+2)(21а²-12а+4)

Comments

спасибо:)