Question Simplify the expression r1 Evaluate r×r21×1Rewrite the expression r×r21Cancel out the common factor r 1×r1Solution r1 Show Solution Find the excluded values r=0 Evaluate r×r21×1To find the excluded values,set the denominators equal to 0 r2=0Solution r=0 Show Solution Find the roots r∈∅ Evaluate r×r21×1To find the roots of the expression,set the expression equal to 0 r×r21×1=0The only way a power can not be 0 is when the base not equals 0 r×r21×1=0,r=0Calculate r×r21×1=0Multiply the terms More Steps Multiply the terms r×r21×1Rewrite the expression r×r21Cancel out the common factor r 1×r1Multiply the terms r1 r1=0Cross multiply 1=r×0Simplify the equation 1=0Solution r∈∅ Show Solution