Question

3a la puterea 2-12ab+12ab supra a la puterea 2 -4bla puterea2

Answer 1

(3a²-12ab+12ab)/(a² -4b²)=
=3a²/(a² -4b²)=
=3a²/(a -2b)(a+2b)


varianta in care in loc de +12ab era 12b²
(3a²-12ab+12b²)/(a² -4b²)=
=3(a²-4ab+4b²)/(a² -4b²)=
=3(a-2b)²/(a -2b)(a+2b)=
=3(a-2b)/(a+2b)