Question Simplify the expression a21 Evaluate a−2Solution a21 Show Solution Find the roots a∈∅ Evaluate a−2To find the roots of the expression,set the expression equal to 0 a−2=0Find the domain a−2=0,a=0Calculate a−2=0Rewrite the expression a21=0Cross multiply 1=a2×0Simplify the equation 1=0Solution a∈∅ Show Solution