Question Factor the expression 2(9−100σ) Evaluate 18−200σSolution 2(9−100σ) Show Solution Find the roots σ=1009Alternative Form σ=0.09 Evaluate 18−200σTo find the roots of the expression,set the expression equal to 0 18−200σ=0Move the constant to the right-hand side and change its sign −200σ=0−18Removing 0 doesn't change the value,so remove it from the expression −200σ=−18Change the signs on both sides of the equation 200σ=18Divide both sides 200200σ=20018Divide the numbers σ=20018Solution σ=1009Alternative Form σ=0.09 Show Solution
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