Question Simplify the expression 3−a Evaluate 4−a−1Solution 3−a Show Solution Find the roots a=3 Evaluate 4−a−1To find the roots of the expression,set the expression equal to 0 4−a−1=0Subtract the numbers 3−a=0Move the constant to the right-hand side and change its sign −a=0−3Removing 0 doesn't change the value,so remove it from the expression −a=−3Solution a=3 Show Solution
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