SOLUTION: X^4+4x^3+6x^2+4x+9 find the value of this question if x=√-2-1

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Question 984439: X^4+4x^3+6x^2+4x+9 find the value of this question if x=√-2-1
Answer by ikleyn(52832)   (Show Source): You can put this solution on YOUR website!

Notice that

= + = + .

Now,   at   =    you have

=  and  = = = .

As a last step,

= + = + = .

Answer.   = at = .


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