Question

Дано
x=t^2-2t
x=2-t
Найти
x-?

Answer 1

${t}^{2} - 2t = 2 - t \ {t}^{2} - t - 2 = 0 \ t = - 1 \ t = 2$

$x = 2 - ( - 1) = 3 \ x = 2 - 2 = 0$