Question Simplify the expression −72a Evaluate −9a−9a×7Multiply the terms −9a−63aCollect like terms by calculating the sum or difference of their coefficients (−9−63)aSolution −72a Show Solution Find the roots a=0 Evaluate −9a−9a×7To find the roots of the expression,set the expression equal to 0 −9a−9a×7=0Multiply the terms −9a−63a=0Subtract the terms More Steps Simplify −9a−63aCollect like terms by calculating the sum or difference of their coefficients (−9−63)aSubtract the numbers −72a −72a=0Change the signs on both sides of the equation 72a=0Solution a=0 Show Solution
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