Question Simplify the expression x Evaluate x21Solution x Show Solution Find the roots x=0 Evaluate x21To find the roots of the expression,set the expression equal to 0 x21=0Find the domain x21=0,x≥0Calculate x21=0The only way a root could be 0 is when the radicand equals 0 x=0Check if the solution is in the defined range x=0,x≥0Solution x=0 Show Solution