Question

Можно 3 задание

Пожалуйста

Answer 1

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