Question Factor the expression r(r−1) Evaluate r2−rRewrite the expression r×r−rSolution r(r−1) Show Solution Find the roots r1=0,r2=1 Evaluate r2−rTo find the roots of the expression,set the expression equal to 0 r2−r=0Factor the expression More Steps Evaluate r2−rRewrite the expression r×r−rFactor out r from the expression r(r−1) r(r−1)=0When the product of factors equals 0,at least one factor is 0 r=0r−1=0Solve the equation for r More Steps Evaluate r−1=0Move the constant to the right-hand side and change its sign r=0+1Removing 0 doesn't change the value,so remove it from the expression r=1 r=0r=1Solution r1=0,r2=1 Show Solution