Question Simplify the expression −13r3 Evaluate r−r−r3×13Use the commutative property to reorder the terms r−r−13r3The sum of two opposites equals 0 More Steps Evaluate r−rCollect like terms (1−1)rAdd the coefficients 0×rCalculate 0 0−13r3Solution −13r3 Show Solution Find the roots r=0 Evaluate r−r−r3×13To find the roots of the expression,set the expression equal to 0 r−r−r3×13=0Use the commutative property to reorder the terms r−r−13r3=0Subtract the terms 0−13r3=0Removing 0 doesn't change the value,so remove it from the expression −13r3=0Change the signs on both sides of the equation 13r3=0Rewrite the expression r3=0Solution r=0 Show Solution