If x and y are non-zero integers, and 25x^4 – 4y^4 = 5x^2 + 2y^2, which of the following could be the value of x2 in terms of y?	Pick:
A) 2y^2+1/6  B) 2y^2/5  C) 2y^2  D) 2y^2+1/5  E) 2y
25x^4 – 4y^4 = 5x^2 + 2y^2   (5x^2 + 2y^2) (5x^2 - 2y^2) = 5x^2 + 2y^2   5x^2 - 2y^2 = 1   5x^2 = 2y^2+1   x^2 = 2y^2+1/5   Answer : 2y^2+1/5
<result>D</result>
If x and y are non-zero integers, and 25x^4 – 4y^4 = 5x^2 + 2y^2, which of the following could be the value of x2 in terms of y?