Question Factor the expression 15(1−2b) Evaluate 15−30bSolution 15(1−2b) Show Solution Find the roots b=21Alternative Form b=0.5 Evaluate 15−30bTo find the roots of the expression,set the expression equal to 0 15−30b=0Move the constant to the right-hand side and change its sign −30b=0−15Removing 0 doesn't change the value,so remove it from the expression −30b=−15Change the signs on both sides of the equation 30b=15Divide both sides 3030b=3015Divide the numbers b=3015Solution b=21Alternative Form b=0.5 Show Solution