Question Find the roots σ=5518Alternative Form σ=0.32˙7˙ Evaluate 18−55σTo find the roots of the expression,set the expression equal to 0 18−55σ=0Move the constant to the right-hand side and change its sign −55σ=0−18Removing 0 doesn't change the value,so remove it from the expression −55σ=−18Change the signs on both sides of the equation 55σ=18Divide both sides 5555σ=5518Solution σ=5518Alternative Form σ=0.32˙7˙ Show Solution
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