5х² - 35 = 0,
5х² = 35,
х² = 7,
х = ±√7,
х1 = √7, х2 = -√7
5x²=35
x²=7
x²-7=0
(x-√7)(x+√7)=0
x1= -√7, x2= √7
5х² - 35 = 0,
5х² = 35,
х² = 7,
х = ±√7,
х1 = √7, х2 = -√7
5x²=35
x²=7
x²-7=0
(x-√7)(x+√7)=0
x1= -√7, x2= √7