Printable View

Solve for x: e^x + 9e^-x = 6.

Quote: Originally Posted by bobby77 Solve for x: e^x + 9e^-x = 6. Hi, e^x + 9e^-x = 6 Multiply both sides by e^x and rearrange: (e^x)^2-6e^x+9=0 The LHS is a complete square: (e^x-3)^2=0 Thus e^x = 3, that means x = ln(3) EB