Respuesta :

caylus

Answer:

Hello,

Step-by-step explanation:

Remember:

[tex]x^3+y^3=(x+y)(x^2-xy+y^2)\\[/tex]

[tex]64a^3+125b^3+12a^2b+15ab^2\\\\=(4a)^3+(5b)^3+3ab(4a+5b)\\\\=(4a+5b)(16a^2-20ab+25b^2)+(4a+5b)*3ab\\\\\boxed{=(4a+5b)(16a^2-17ab+25b^2)}\\[/tex]