[5 / 1 / ?] 38KiB, 362x346, 1505842017650.jpg View SameGoogleImgOpsiqdbSauceNAO Thread Reply Original Report Media View Same Google ImgOps iqdb SauceNAO Download Anonymous Tue 26 Sep 2017 19:04:04 No.388829 View ViewReplyOriginalReport Quoted By: >>388830 >>388889 >>388920 Hey /wsr/, I need help figuring out the vertex of this equation:x2+4xy+4y2-20x+10y=25