Question Simplify the expression Solution ya−yb−a+b Evaluate y(a−b)−(a−b)If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses y(a−b)−a+bSolution ya−yb−a+b Show Solution Factor the expression Factor (y−1)(a−b) Evaluate y(a−b)−(a−b)Solution (y−1)(a−b) Show Solution