Question Simplify the expression k4−391 Evaluate k4×1−391−0Any expression multiplied by 1 remains the same k4−391−0Solution k4−391 Show Solution Find the roots k1=−4391,k2=4391Alternative Form k1≈−4.446765,k2≈4.446765 Evaluate k4×1−391−0To find the roots of the expression,set the expression equal to 0 k4×1−391−0=0Any expression multiplied by 1 remains the same k4−391−0=0Removing 0 doesn't change the value,so remove it from the expression k4−391=0Move the constant to the right-hand side and change its sign k4=0+391Removing 0 doesn't change the value,so remove it from the expression k4=391Take the root of both sides of the equation and remember to use both positive and negative roots k=±4391Separate the equation into 2 possible cases k=4391k=−4391Solution k1=−4391,k2=4391Alternative Form k1≈−4.446765,k2≈4.446765 Show Solution
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