Question Solve for x: e^(3x )+ e^x – 6 = 0 Right now I’m having trouble with the step u = e^x, u^3 + u – 6 = 0. Help!
The value of x of the cubic equation e³ˣ + eˣ – 6 = 0 will be 0.49 What is a cubic equation? The cubic equation is given as ax³ + bx² + cx + d = 0. Then degree of the equation will be 3. Then we have The cubic equation will be e³ˣ + eˣ – 6 = 0 Let eˣ = u, then the equation will be u³ + u – 6 = 0 Then the root of the equation is calculated by the calculator, then we have u = 1.634, -0.817, -0.817 eˣ = 1.634, -0.817, -0.817 Take log on both sides, then we have x = ln 1.634, ln(-0.817), ln(-0.817) x = 0.49, not defined, not defined Then the value of x will be 0.49. More about the cubic equation link is given below. https://brainly.com/question/13730904 #SPJ1 Log in to Reply
What is a cubic equation?