Question Simplify the expression x2−90x Evaluate x2−10x×9Solution x2−90x Show Solution Factor the expression x(x−90) Evaluate x2−10x×9Multiply the terms x2−90xRewrite the expression x×x−x×90Solution x(x−90) Show Solution Find the roots x1=0,x2=90 Evaluate x2−10x×9To find the roots of the expression,set the expression equal to 0 x2−10x×9=0Multiply the terms x2−90x=0Factor the expression More Steps Evaluate x2−90xRewrite the expression x×x−x×90Factor out x from the expression x(x−90) x(x−90)=0When the product of factors equals 0,at least one factor is 0 x=0x−90=0Solve the equation for x More Steps Evaluate x−90=0Move the constant to the right-hand side and change its sign x=0+90Removing 0 doesn't change the value,so remove it from the expression x=90 x=0x=90Solution x1=0,x2=90 Show Solution