Question Factor the expression 4(7−75σ) Evaluate 28−300σSolution 4(7−75σ) Show Solution Find the roots σ=757Alternative Form σ=0.093˙ Evaluate 28−300σTo find the roots of the expression,set the expression equal to 0 28−300σ=0Move the constant to the right-hand side and change its sign −300σ=0−28Removing 0 doesn't change the value,so remove it from the expression −300σ=−28Change the signs on both sides of the equation 300σ=28Divide both sides 300300σ=30028Divide the numbers σ=30028Solution σ=757Alternative Form σ=0.093˙ Show Solution
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