Question Simplify the expression Solution −2a Evaluate a−a−a−aWrite the repeated addition as multiplication a−a×3Use the commutative property to reorder the terms a−3aCollect like terms by calculating the sum or difference of their coefficients (1−3)aSolution −2a Show Solution Find the roots Find the roots of the algebra expression a=0 Evaluate a−a−a−aTo find the roots of the expression,set the expression equal to 0 a−a−a−a=0Subtract the terms 0−a−a=0Removing 0 doesn't change the value,so remove it from the expression −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