Question Simplify the expression 78213−r Evaluate 78213−r×1Solution 78213−r Show Solution Find the roots r=78213 Evaluate 78213−r×1To find the roots of the expression,set the expression equal to 0 78213−r×1=0Any expression multiplied by 1 remains the same 78213−r=0Move the constant to the right-hand side and change its sign −r=0−78213Removing 0 doesn't change the value,so remove it from the expression −r=−78213Solution r=78213 Show Solution