Question

Можно 3 задание

Пожалуйста

Answer 1

$5)t ^{2} - 11t + 18 = 0 \ t = 9 \ t = 2 \ {x }^{2} = 9 \ {x}^{2} = 2 \ x = 3 \ x = - 3 \ x = sqrt{2 } \ x = - sqrt{2}$