Question

решить уровнение (2х-5)^2-(2х-3)^2=0

Answer 1

( 2х - 5 )^2 - ( 2х - 3 )^2 = 0 ; 4х^2 - 20х + 25 - ( 4х^2 - 12х + 9 ) = 0 ; 4х^2 - 20х + 25 - 4х^2 + 12х - 9 = 0 ; - 8х = - 16 ; Х = 2

Answer 2

4х²-20х+25-4х²+12х-9=0
-8х+16=0
-8х=-16
х=-16:(-8)
х=2