Question

a(a2+3b2)=b(b2+3a)+8,que valor tiene a-b​

Answer 1

Respuesta:

a-b=2

Explicación paso a paso:

$a(a^{2}+3b^{2})=b(b^{2}+3a^{2})+8\\\\a^{3}+3ab^{2}=b^{3}+3a^{2} b+8\\\\a^{3}-3a^{2}b+3ab^{2}-b^{3}=8\\\\(a-b)^{2}=8\\\\a-b=2$