Question Factor the expression 10(7−20σ) Evaluate 70−200σSolution 10(7−20σ) Show Solution Find the roots σ=207Alternative Form σ=0.35 Evaluate 70−200σTo find the roots of the expression,set the expression equal to 0 70−200σ=0Move the constant to the right-hand side and change its sign −200σ=0−70Removing 0 doesn't change the value,so remove it from the expression −200σ=−70Change the signs on both sides of the equation 200σ=70Divide both sides 200200σ=20070Divide the numbers σ=20070Solution σ=207Alternative Form σ=0.35 Show Solution
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