Question Simplify the expression z2−z Evaluate z2−z×1Solution z2−z Show Solution Factor the expression z(z−1) Evaluate z2−z×1Any expression multiplied by 1 remains the same z2−zRewrite the expression z×z−zSolution z(z−1) Show Solution Find the roots z1=0,z2=1 Evaluate z2−z×1To find the roots of the expression,set the expression equal to 0 z2−z×1=0Any expression multiplied by 1 remains the same z2−z=0Factor the expression More Steps Evaluate z2−zRewrite the expression z×z−zFactor out z from the expression z(z−1) z(z−1)=0When the product of factors equals 0,at least one factor is 0 z=0z−1=0Solve the equation for z More Steps Evaluate z−1=0Move the constant to the right-hand side and change its sign z=0+1Removing 0 doesn't change the value,so remove it from the expression z=1 z=0z=1Solution z1=0,z2=1 Show Solution