Question Simplify the expression −3r Evaluate r×1−r−3rAny expression multiplied by 1 remains the same r−r−3rCollect like terms by calculating the sum or difference of their coefficients (1−1−3)rSolution −3r Show Solution Find the roots r=0 Evaluate r×1−r−3rTo find the roots of the expression,set the expression equal to 0 r×1−r−3r=0Any expression multiplied by 1 remains the same r−r−3r=0Subtract the terms 0−3r=0Removing 0 doesn't change the value,so remove it from the expression −3r=0Change the signs on both sides of the equation 3r=0Solution r=0 Show Solution
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