Pre-AlgebraMedium SharePre-Algebra · Medium problemExpand: 3(2x−4y+1)3(2x - 4y + 1)3(2x−4y+1).A6x+12y+36x + 12y + 36x+12y+3B6x−12y+36x - 12y + 36x−12y+3C12x−12y+312x - 12y + 312x−12y+3D6x−12y+46x - 12y + 46x−12y+4Check Show answer Walk through it step by step Practice more like this