Question Simplify the expression −1769−a Evaluate 217−1986−aSolution −1769−a Show Solution Find the roots a=−1769 Evaluate 217−1986−aTo find the roots of the expression,set the expression equal to 0 217−1986−a=0Subtract the numbers −1769−a=0Move the constant to the right-hand side and change its sign −a=0+1769Removing 0 doesn't change the value,so remove it from the expression −a=1769Solution a=−1769 Show Solution
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