Question Factor the expression 4(50−r) Evaluate 200−4rSolution 4(50−r) Show Solution Find the roots r=50 Evaluate 200−4rTo find the roots of the expression,set the expression equal to 0 200−4r=0Move the constant to the right-hand side and change its sign −4r=0−200Removing 0 doesn't change the value,so remove it from the expression −4r=−200Change the signs on both sides of the equation 4r=200Divide both sides 44r=4200Divide the numbers r=4200Solution More Steps Evaluate 4200Reduce the numbers 150Calculate 50 r=50 Show Solution