You want to solve for a.
Okay, multiplying the left side, which is the same as . That is a cubic equation and there is a formula for the solution- unfortunately, it is very complicated.
Look at Cubic Formula -- from Wolfram MathWorld
You want to solve for a.
Okay, multiplying the left side, which is the same as . That is a cubic equation and there is a formula for the solution- unfortunately, it is very complicated.
Look at Cubic Formula -- from Wolfram MathWorld