1) C^3+8=C^3+2^3 =(c+2)(c^2 +c2+4)
27a^3 -b^3=(3a-b)(9a^2+3ab+b^2)
x^6-y^9=(c^2-y^3)(x^4+x^2+y^3+y^6)
( a-2)^3+27=(a-2+3)((a-2)^2-(a-8)•3+9)=(a+1)(a^2-4a+4-(3a-6)+9)=(a+1) (a^2-4a+4-3a+6+9)=(a+11)(a^2-7 a+14)
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1) C^3+8=C^3+2^3 =(c+2)(c^2 +c2+4)
27a^3 -b^3=(3a-b)(9a^2+3ab+b^2)
x^6-y^9=(c^2-y^3)(x^4+x^2+y^3+y^6)
( a-2)^3+27=(a-2+3)((a-2)^2-(a-8)•3+9)=(a+1)(a^2-4a+4-(3a-6)+9)=(a+1) (a^2-4a+4-3a+6+9)=(a+11)(a^2-7 a+14)