Question

помогите решить 2 уравнения

Answer 1

$sqrt{x-2} =4 \ x-2 =4^2 \ x-2=16 \ x=18$
Ответ: 18

$sqrt{x+1} =1-x \ left { {{ x+1 =(1-x)^2} atop {1-x geq 0}} right. \ left { {{ x+1 =1-2x+x^2} atop {x leq 1}} right. \ left { {{ x^2-3x=0} atop {x leq 1}} right. \ left { {{ x(x-3)=0} atop {x leq 1}} right. \ left { {{ x_1=0; x_2=3} atop {x leq 1}} right. \ x=0$
Ответ: 0