Rhiannafaybautistaviz Rhiannafaybautistaviz Math Answered 1. (5× + 7) + (3x -5)2. (12x - 4) - (3x - 7)3. Add 6x² - 7x + 4 and 7x² - 9x + 84. Subtract 4x² - 5x - 8 from 6x² - 3x +85. (7x² + 3x - 4) - (2x² + 3x -7)