Question Simplify the expression x2−4x Evaluate x2−4x×1Solution x2−4x Show Solution Factor the expression x(x−4) Evaluate x2−4x×1Multiply the terms x2−4xRewrite the expression x×x−x×4Solution x(x−4) Show Solution Find the roots x1=0,x2=4 Evaluate x2−4x×1To find the roots of the expression,set the expression equal to 0 x2−4x×1=0Multiply the terms x2−4x=0Factor the expression More Steps Evaluate x2−4xRewrite the expression x×x−x×4Factor out x from the expression x(x−4) x(x−4)=0When the product of factors equals 0,at least one factor is 0 x=0x−4=0Solve the equation for x More Steps Evaluate x−4=0Move the constant to the right-hand side and change its sign x=0+4Removing 0 doesn't change the value,so remove it from the expression x=4 x=0x=4Solution x1=0,x2=4 Show Solution