How do you solve #x^3+4x^2+x-6=0# ??
1 Answer
Explanation:
.
For higher order functions like this, you can start trying
Let's try
This shows
The result is:
Therefore,
We can factor the second part if it is factorable. Otherwise, we can use the quadratic formula to solve it. The general form of a quadratic function is:
But this function is factorable and is equal to :
Therefore, our original function factors to:
Setting it equal to