Question Simplify the expression −9−a3 Evaluate 3−a3−12Solution −9−a3 Show Solution Find the roots a=−39Alternative Form a≈−2.080084 Evaluate (3−a3−12)To find the roots of the expression,set the expression equal to 0 3−a3−12=0Subtract the numbers −9−a3=0Move the constant to the right-hand side and change its sign −a3=0+9Removing 0 doesn't change the value,so remove it from the expression −a3=9Change the signs on both sides of the equation a3=−9Take the 3-th root on both sides of the equation 3a3=3−9Calculate a=3−9Solution a=−39Alternative Form a≈−2.080084 Show Solution
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