Question Simplify the expression 78−a Evaluate 178−aSolution 78−a Show Solution Find the roots a=78 Evaluate 178−aTo find the roots of the expression,set the expression equal to 0 178−a=0Divide the terms 78−a=0Move the constant to the right-hand side and change its sign −a=0−78Removing 0 doesn't change the value,so remove it from the expression −a=−78Solution a=78 Show Solution
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