👤

5x(5x+2)+3=2(rezolvati in R ecuatia))
3x(3x-2)+7=6(rezolvati in R ecuatia


Răspuns :

... 25x+10+3=2 ⇒ 25x = 2-3-10 ⇒ x = -11/25∈R ;

...  9x-6+7=6     ⇒   9x = 6+6-7  ⇒ x = 5/9∈R ;
25x= 2.3.10=>x = -11\25 €R 9x= 6+6-7 => x= 5\9€R