Question Factor the expression 10(1−5r) Evaluate 10−50rSolution 10(1−5r) Show Solution Find the roots r=51Alternative Form r=0.2 Evaluate 10−50rTo find the roots of the expression,set the expression equal to 0 10−50r=0Move the constant to the right-hand side and change its sign −50r=0−10Removing 0 doesn't change the value,so remove it from the expression −50r=−10Change the signs on both sides of the equation 50r=10Divide both sides 5050r=5010Divide the numbers r=5010Solution r=51Alternative Form r=0.2 Show Solution