Question

2х² - 3 = 0 и х² - 4 = 0

Answer 1

$2x^2-3=0$
$2x^2=3$
$x^2=3:2$
$x^2=1,5$
$x=- \frac{ \sqrt{6} }{2}$
$x= \frac{ \sqrt{6} }{2}$
$Otvet:- \frac{ \sqrt{6} }{2}; \frac{ \sqrt{6} }{2}.$
$x^2-4=0$
$x^2=4$
$/x/= \sqrt{4}$
$x=-2$
$x=2$
$Otvet:-2;2.$