Question Simplify the expression r−4 Evaluate r−∣4∣Solution r−4 Show Solution Find the roots r=4 Evaluate r−∣4∣To find the roots of the expression,set the expression equal to 0 r−∣4∣=0When the expression in absolute value bars is not negative, remove the bars r−4=0Move the constant to the right-hand side and change its sign r=0+4Solution r=4 Show Solution
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