Question

If x= 1+√2 then find the value of the expression x^4 - X^3-2x^2-3x+1​

Answer 1

Answer:

-4-5root2

Step-by-step explanation:

p(1+root2)=(1+root2)^4-(1+root2)^3-2(1+root2)^2-3(1+root2)+1

                =1+4-1-2root2-2-4-3-3root2+1

                =(1+4-1-2-4-3+1)+(-2root2-3root2)

                =(-4)+(-5root2)

                =-4-5root2

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