The conversation between human and AI assistant.
How can I solve this: X^4-2√2 X^2-X+2√2?
Alright, let's start with X=-1.
When we substitute -1 for X, we get (-1)^4-2√2 (-1)^2 -(-1) + 2√2, which simplifies to 1+2-1+2√2. This does equal 2√2, which is the value of the equation when X=-1.