Question Simplify the expression Solution 249−a Evaluate 251−a−1Solution More Steps Evaluate 251−1Reduce fractions to a common denominator 251−22Write all numerators above the common denominator 251−2Subtract the numbers 249 249−a Show Solution Factor the expression Factor 21(49−2a) Evaluate 251−a−1Subtract the numbers More Steps Evaluate 251−1Reduce fractions to a common denominator 251−22Write all numerators above the common denominator 251−2Subtract the numbers 249 249−aSolution 21(49−2a) Show Solution Find the roots Find the roots of the algebra expression a=249Alternative Form a=24.5 Evaluate 251−a−1To find the roots of the expression,set the expression equal to 0 251−a−1=0Subtract the numbers More Steps Simplify 251−a−1Subtract the numbers More Steps Evaluate 251−1Reduce fractions to a common denominator 251−22Write all numerators above the common denominator 251−2Subtract the numbers 249 249−a 249−a=0Move the constant to the right-hand side and change its sign −a=0−249Removing 0 doesn't change the value,so remove it from the expression −a=−249Solution a=249Alternative Form a=24.5 Show Solution