Question

решите уравнение: (6а-1) (6а+1)-4а(9a+2)=-1

Answer 1

36а²+6а-6а-1-36а²-8а=-1
36а²+6а-6а-36а²-8а=-1+1
-8а=0
а=0÷(-8)
а=0

Answer 2

(6а-1)(6а+1) -4а(9а+2)=-1 36а² - 1-36а²-8а=-1 -8а=-1+1 -8а=0 а= 0/(-8)= 0 Ответ:0