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