Question Factor the expression 10(1−2σ) Evaluate 10−20σSolution 10(1−2σ) Show Solution Find the roots σ=21Alternative Form σ=0.5 Evaluate 10−20σTo find the roots of the expression,set the expression equal to 0 10−20σ=0Move the constant to the right-hand side and change its sign −20σ=0−10Removing 0 doesn't change the value,so remove it from the expression −20σ=−10Change the signs on both sides of the equation 20σ=10Divide both sides 2020σ=2010Divide the numbers σ=2010Solution σ=21Alternative Form σ=0.5 Show Solution
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