Question Simplify the expression 1 Evaluate r−r+1The sum of two opposites equals 0 More Steps Evaluate r−rCollect like terms (1−1)rAdd the coefficients 0×rCalculate 0 0+1Solution 1 Show Solution Find the roots r∈∅ Evaluate r−r+1To find the roots of the expression,set the expression equal to 0 r−r+1=0Subtract the terms 0+1=0Removing 0 doesn't change the value,so remove it from the expression 1=0Solution r∈∅ Show Solution