Find the center of the ellipse 4x2+9y2−8x+36y+4=04x^2 + 9y^2 - 8x + 36y + 4 = 04x2+9y2−8x+36y+4=0.
(1,−2)(1, -2)(1,−2)
(−1,2)(-1, 2)(−1,2)
(1,2)(1, 2)(1,2)
(2,−1)(2, -1)(2,−1)