Решите уравнения:
(х+2)(х-2)= 4(х-1)(х+1)
4(х+2)(х-3)=(х-2)(х+2)

(х+2)(х-2)=4(х-1)(х+1)х^2 - 4 = (4х - 4)(х+1)х^2 - 4 = 4х^2 - 4х^2 = 4х^2х^2 - 4х^2 = 0-3х^2 = 0х = 04(х+2)(х-3) = (х-2)(х+2)(4х+8)(х-3) = х^2 - 44х^2 - 4х - 24 = х^2 - 44х^2 - 4х - 24 - х^2 + 4 = 04х^2 - 4х - х^2 - 20 = 03х^2 - 4х - 20 = 03х^2 - 4х = 20х € (-2 ; 3 1/3)