Question Simplify the expression 12−a Evaluate 15−a−3Solution 12−a Show Solution Find the roots a=12 Evaluate 15−a−3To find the roots of the expression,set the expression equal to 0 15−a−3=0Subtract the numbers 12−a=0Move the constant to the right-hand side and change its sign −a=0−12Removing 0 doesn't change the value,so remove it from the expression −a=−12Solution a=12 Show Solution
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