Question

помогите решить в4 пожалуйсто

Answer 1

$|sqrt{x-4}-6|=2 \\ left { {{sqrt{x-4}-6=2} atop {sqrt{x-4}-6=-2}} right. \\ left { {{sqrt{x-4}=8} atop {sqrt{x-4}=4}} right. \\ left { {{x-4=64} atop {x-4=16}} right. \\ left { {{x=68} atop {x=20}} right. \\ x_1+x_2=88$