Let's solve in ℝ: (2x -7)·(x -1) = 0 Let's solve in ℝ: 2x -7 = 0 2x = 7 Solution obtained: x = 72 Let's solve in ℝ: x -1 = 0 Solution found: x = 1 ▶Solution: x = { 1, 72 } The numeric value of: x = { 1, 72 } equals: ▷ x = { 1, 3.5 }