Question Simplify the expression 168x−9 Evaluate 21x×8−9Solution 168x−9 Show Solution Factor the expression 3(56x−3) Evaluate 21x×8−9Multiply the terms 168x−9Solution 3(56x−3) Show Solution Find the roots x=563Alternative Form x=0.0535˙71428˙ Evaluate 21x×8−9To find the roots of the expression,set the expression equal to 0 21x×8−9=0Multiply the terms 168x−9=0Move the constant to the right-hand side and change its sign 168x=0+9Removing 0 doesn't change the value,so remove it from the expression 168x=9Divide both sides 168168x=1689Divide the numbers x=1689Solution x=563Alternative Form x=0.0535˙71428˙ Show Solution