Question Factor the expression 5(1−3r) Evaluate 5−15rSolution 5(1−3r) Show Solution Find the roots r=31Alternative Form r=0.3˙ Evaluate 5−15rTo find the roots of the expression,set the expression equal to 0 5−15r=0Move the constant to the right-hand side and change its sign −15r=0−5Removing 0 doesn't change the value,so remove it from the expression −15r=−5Change the signs on both sides of the equation 15r=5Divide both sides 1515r=155Divide the numbers r=155Solution r=31Alternative Form r=0.3˙ Show Solution