Question Simplify the expression x2−42x Evaluate x2−6x×7Solution x2−42x Show Solution Factor the expression x(x−42) Evaluate x2−6x×7Multiply the terms x2−42xRewrite the expression x×x−x×42Solution x(x−42) Show Solution Find the roots x1=0,x2=42 Evaluate x2−6x×7To find the roots of the expression,set the expression equal to 0 x2−6x×7=0Multiply the terms x2−42x=0Factor the expression More Steps Evaluate x2−42xRewrite the expression x×x−x×42Factor out x from the expression x(x−42) x(x−42)=0When the product of factors equals 0,at least one factor is 0 x=0x−42=0Solve the equation for x More Steps Evaluate x−42=0Move the constant to the right-hand side and change its sign x=0+42Removing 0 doesn't change the value,so remove it from the expression x=42 x=0x=42Solution x1=0,x2=42 Show Solution