Question Simplify the expression s3−3s2+3s−1 Evaluate (s−1)3Use (a−b)3=a3−3a2b+3ab2−b3 to expand the expression s3−3s2×1+3s×12−13Solution s3−3s2+3s−1 Show Solution Find the roots s=1 Evaluate (s−1)3To find the roots of the expression,set the expression equal to 0 (s−1)3=0The only way a power can be 0 is when the base equals 0 s−1=0Move the constant to the right-hand side and change its sign s=0+1Solution s=1 Show Solution
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