Question

Решите уравнение:
x²-10x+18=0

Answer 1

$x^2-10x+18=0$
$x^2-10x=-18$
$x^2-10x+25=7$
$(x-5)^2=7$
$x-5= \sqrt{7} ///x-5=- \sqrt{7}$
$x=5+ \sqrt{7} ///x=5- \sqrt{7}$