Question Simplify the expression 712r2 Evaluate 70120r2×1Cancel out the common factor 10 712r2×1Solution 712r2 Show Solution Find the roots r=0 Evaluate 70120r2×1To find the roots of the expression,set the expression equal to 0 70120r2×1=0Cancel out the common factor 10 712r2×1=0Multiply the terms 712r2=0Rewrite the expression r2=0Solution r=0 Show Solution