Question Simplify the expression 10z2−5400z Evaluate 10z2−60z×90Solution 10z2−5400z Show Solution Factor the expression 10z(z−540) Evaluate 10z2−60z×90Multiply the terms 10z2−5400zRewrite the expression 10z×z−10z×540Solution 10z(z−540) Show Solution Find the roots z1=0,z2=540 Evaluate 10z2−60z×90To find the roots of the expression,set the expression equal to 0 10z2−60z×90=0Multiply the terms 10z2−5400z=0Factor the expression More Steps Evaluate 10z2−5400zRewrite the expression 10z×z−10z×540Factor out 10z from the expression 10z(z−540) 10z(z−540)=0When the product of factors equals 0,at least one factor is 0 10z=0z−540=0Solve the equation for z z=0z−540=0Solve the equation for z More Steps Evaluate z−540=0Move the constant to the right-hand side and change its sign z=0+540Removing 0 doesn't change the value,so remove it from the expression z=540 z=0z=540Solution z1=0,z2=540 Show Solution