Question Simplify the expression −2a Evaluate −a−aCollect like terms by calculating the sum or difference of their coefficients (−1−1)aSolution −2a Show Solution Find the roots a=0 Evaluate −a−aTo find the roots of the expression,set the expression equal to 0 −a−a=0Subtract the terms More Steps Simplify −a−aCollect like terms by calculating the sum or difference of their coefficients (−1−1)aSubtract the numbers −2a −2a=0Change the signs on both sides of the equation 2a=0Solution a=0 Show Solution