Question Simplify the expression aa2−1 Evaluate a−a1×1Calculate a−a1Reduce fractions to a common denominator aa×a−a1Write all numerators above the common denominator aa×a−1Solution aa2−1 Show Solution Find the excluded values a=0 Evaluate a−a1×1Solution a=0 Show Solution Find the roots a1=−1,a2=1 Evaluate a−a1×1To find the roots of the expression,set the expression equal to 0 a−a1×1=0Find the domain a−a1×1=0,a=0Calculate a−a1×1=0Calculate a−a1=0Subtract the terms More Steps Simplify a−a1Reduce fractions to a common denominator aa×a−a1Write all numerators above the common denominator aa×a−1Multiply the terms aa2−1 aa2−1=0Cross multiply a2−1=a×0Simplify the equation a2−1=0Move the constant to the right side a2=1Take the root of both sides of the equation and remember to use both positive and negative roots a=±1Simplify the expression a=±1Separate the equation into 2 possible cases a=1a=−1Check if the solution is in the defined range a=1a=−1,a=0Find the intersection of the solution and the defined range a=1a=−1Solution a1=−1,a2=1 Show Solution