Question Factor the expression 9(2−15σ) Evaluate 18−135σSolution 9(2−15σ) Show Solution Find the roots σ=152Alternative Form σ=0.13˙ Evaluate 18−135σTo find the roots of the expression,set the expression equal to 0 18−135σ=0Move the constant to the right-hand side and change its sign −135σ=0−18Removing 0 doesn't change the value,so remove it from the expression −135σ=−18Change the signs on both sides of the equation 135σ=18Divide both sides 135135σ=13518Divide the numbers σ=13518Solution σ=152Alternative Form σ=0.13˙ Show Solution
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