Question Find the roots u=42140Alternative Form u≈0.095012 Evaluate 40−421uTo find the roots of the expression,set the expression equal to 0 40−421u=0Move the constant to the right-hand side and change its sign −421u=0−40Removing 0 doesn't change the value,so remove it from the expression −421u=−40Change the signs on both sides of the equation 421u=40Divide both sides 421421u=42140Solution u=42140Alternative Form u≈0.095012 Show Solution