Question

Найдите критические точки функции y(x)=x²+10x​

Answer 1

$y(x) = {x}^{2} + 10x \\ y' = 2x + 10 \\ y' = 0 \\ 2x + 100 \\ 2x = - 10 \\ x = - 10 \div 2 \\ x = - 5 \\ - - - [ - 5] + + + \\ x_{min} = - 5$