Решите уравнение (2x-5)^2-(2x-3)(2x+3)=0
(2Х-5)²-(2Х-3)(2Х+3) =0 4Х²-20Х+25-4Х²+9=0 -20Х = 34 Х= 34 : (-20) Х=- 1.7
( 2X - 5 ) ² - ( 2X - 3)*( 2X + 3 ) = 0 4X² - 20X + 25 - ( 4X² - 9 ) = 0 4X² - 20X + 25 - 4X² + 9 = 0 20X = 34 X = 34 : 20 X = 1,7