Question Factor the expression 2(1−10r) Evaluate 2−20rSolution 2(1−10r) Show Solution Find the roots r=101Alternative Form r=0.1 Evaluate 2−20rTo find the roots of the expression,set the expression equal to 0 2−20r=0Move the constant to the right-hand side and change its sign −20r=0−2Removing 0 doesn't change the value,so remove it from the expression −20r=−2Change the signs on both sides of the equation 20r=2Divide both sides 2020r=202Divide the numbers r=202Solution r=101Alternative Form r=0.1 Show Solution
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