Question

Descompuneti in factori : 
$a^{6} - b^{6}$

Answer 1

a^6 - b^6 

Se mai poate scrie

= (a^3)^2- (b^3)^2    ne folosim de formula (x-y)(x+y)=x^2-y^2
= (a^3+b^3)(a^3-b^3) 

= (a+b)(a^2-ab+b^2)(a-b)(a^2+ab+b^2) 

= (a+b)(a-b)(a^2+ab+b^2)(a^2-ab+b^2)

Answer 2

$a ^{6} -b ^{6} =(a-b)^{6}$