Question Simplify the expression 138−A Evaluate 216−A−78Solution 138−A Show Solution Find the roots A=138 Evaluate 216−A−78To find the roots of the expression,set the expression equal to 0 216−A−78=0Subtract the numbers 138−A=0Move the constant to the right-hand side and change its sign −A=0−138Removing 0 doesn't change the value,so remove it from the expression −A=−138Solution A=138 Show Solution
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