Question

найдите корень уравнения

(6a-1)(6a+1)=4a(9a+2)-1

Answer 1

36a² - 1 = 36a² + 8a - 1 
36a² - 1 = 36a² - 1 + 8a
36a² - 1 - 36a² + 1 - 8a = 0 
 - 8a = 0  / : ( - 8)
a = 0