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