Question Simplify the expression s4−40 Evaluate 1×s4−40Solution s4−40 Show Solution Find the roots s1=−440,s2=440Alternative Form s1≈−2.514867,s2≈2.514867 Evaluate 1×s4−40To find the roots of the expression,set the expression equal to 0 1×s4−40=0Any expression multiplied by 1 remains the same s4−40=0Move the constant to the right-hand side and change its sign s4=0+40Removing 0 doesn't change the value,so remove it from the expression s4=40Take the root of both sides of the equation and remember to use both positive and negative roots s=±440Separate the equation into 2 possible cases s=440s=−440Solution s1=−440,s2=440Alternative Form s1≈−2.514867,s2≈2.514867 Show Solution
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