Question Factor the expression 2(40215−2j) Evaluate 80430−4jSolution 2(40215−2j) Show Solution Find the roots j=240215Alternative Form j=20107.5 Evaluate 80430−4jTo find the roots of the expression,set the expression equal to 0 80430−4j=0Move the constant to the right-hand side and change its sign −4j=0−80430Removing 0 doesn't change the value,so remove it from the expression −4j=−80430Change the signs on both sides of the equation 4j=80430Divide both sides 44j=480430Divide the numbers j=480430Solution j=240215Alternative Form j=20107.5 Show Solution
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