已知实数 x,yx,yx,y 满足 2x2−5lnx−y=0,m∈R2{x}^{2} - 5\ln x - y = 0,m \in \mathbf{R}2x2−5lnx−y=0,m∈R ,则 x2+y2−2mx+2my+2m2\sqrt{{x}^{2} + {y}^{2} - {2mx} + {2my} + 2{m}^{2}}x2+y2−2mx+2my+2m2 的最小值为 ( )A. 92\frac{9}{2}29 B. 322\frac{3\sqrt{2}}{2}232 C. 22\frac{\sqrt{2}}{2}22 D. 12\frac{1}{2}21