johnobedmandani johnobedmandani 12-12-2022 Mathematics contestada 1. 2ab( 4a2 + 3ab - 7b2) 2. -3xy(x3y3 - 3x2y + 7xy2) 3. (x + 2)(x2 –3x + 2) 4. (2x - 1)(2x2 + 4x + 3) 5. (12y2 –9y + 16)(8y3 –14y + 5)