If x=-5+2sqrt(-4) , find the value of x^4+9x^3+35 x^2-x+4.

If x = 1/(2-sqrt3) then find the value of (x^(3) -2x^2 - 7x +4)

If xsqrt2=1+sqrt-1, "find the value of " x^(6)+x^(4)+x^(2)+2.

If x= (sqrt2+1)/(sqrt2-1) and x-y= 4sqrt2 then find the value of x^4+y^4 .

If x=-1+i sqrt2 and the value of x^(4)+4x^(3)+6x^(2)+4x+9.

If x and y are rational and if x (3 + 2 sqrt2) - y sqrt2 = y(5 -3 sqrt2) + 7(2 + x sqrt2) , then find the value of x and y

If f(x)=sqrt2x-sqrt(2/x)+(4-x)/(4-x) , find the value of f(2)

If x =1 + sqrt2 + sqrt3 and y =1 + sqrt2 -sqrt3 then find the value of (x^(2) +4xy +y^(2))/(x+y)

If a = (sqrt5 +1 )/( sqrt5 -1) and b = (sqrt5 -1)/(sqrt5 +1) the find the value of (5a^(2) -3ab + 5b^(2)) (b) If x = (sqrt3 + sqrt2)/(sqrt3 - sqrt2) and y = (sqrt3 -sqrt2)/(sqrt3 + sqrt2) then find the value of (3x^(2) -5xy + 3y^(2)) (c) If x = sqrt3 + sqrt2 and y = sqrt3 -sqrt2 then find the value of (x^(3) + y^(3)) and (x^(3) - y^(3))