Question Simplify the expression 21r2 Evaluate 30315r2×2Cancel out the common factor 15 221r2×2Solution More Steps Evaluate 221×2Reduce the fraction 21×1Any expression multiplied by 1 remains the same 21 21r2 Show Solution Find the roots r=0 Evaluate 30315r2×2To find the roots of the expression,set the expression equal to 0 30315r2×2=0Cancel out the common factor 15 221r2×2=0Multiply the terms More Steps Multiply the terms 221r2×2Multiply the terms More Steps Evaluate 221×2Reduce the fraction 21×1Any expression multiplied by 1 remains the same 21 21r2 21r2=0Rewrite the expression r2=0Solution r=0 Show Solution
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