Ajutor dau corana
Descompuneti in factori :
a) x^2 +12x +35
b)x^2 +17x+70
c)x^2 +15x +56
d)x^2 -9x +20
e)x^2 -14x +42
f)x^2 - 13x+42
va rog dau coroana
