Question Simplify the expression 27x−40 Evaluate 3x×9−40Solution 27x−40 Show Solution Find the roots x=2740Alternative Form x=1.4˙81˙ Evaluate 3x×9−40To find the roots of the expression,set the expression equal to 0 3x×9−40=0Multiply the terms 27x−40=0Move the constant to the right-hand side and change its sign 27x=0+40Removing 0 doesn't change the value,so remove it from the expression 27x=40Divide both sides 2727x=2740Solution x=2740Alternative Form x=1.4˙81˙ Show Solution