Question Simplify the expression 859r−21 Evaluate 40295r−21Solution 859r−21 Show Solution Factor the expression 81(59r−168) Evaluate 40295r−21Cancel out the common factor 5 859r−21Solution 81(59r−168) Show Solution Find the roots r=59168Alternative Form r≈2.847458 Evaluate 40295r−21To find the roots of the expression,set the expression equal to 0 40295r−21=0Cancel out the common factor 5 859r−21=0Move the constant to the right-hand side and change its sign 859r=0+21Removing 0 doesn't change the value,so remove it from the expression 859r=21Multiply by the reciprocal 859r×598=21×598Multiply r=21×598Solution More Steps Evaluate 21×598Multiply the numbers 5921×8Multiply the numbers 59168 r=59168Alternative Form r≈2.847458 Show Solution