Klenttejanogo Klenttejanogo Math Answered 3. Simplify: (2x - 4x + 8 +12) - (x + 5x2 - 7x + 10) A. *** + 15x + 2 C.-9x2 + 15x + 2 B. X+*+2 D.X + 9x2 + x + 2