Question Simplify the expression −438−a Evaluate 821−1259−aSolution −438−a Show Solution Find the roots a=−438 Evaluate 821−1259−aTo find the roots of the expression,set the expression equal to 0 821−1259−a=0Subtract the numbers −438−a=0Move the constant to the right-hand side and change its sign −a=0+438Removing 0 doesn't change the value,so remove it from the expression −a=438Solution a=−438 Show Solution
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