👤

Descompuneti in factori
A) 16a la 2 - 9b la 2


Răspuns :

[tex]16a^2-9b^2=(4a)^2-(3b)^2=(4a-3b)(4a+3b)[/tex]

Am folosit formula [tex]x^2-y^2=(x-y)(x+y)[/tex]