text: 5x - 2(5x² - 5x + 5) + (7x² + 4x - 4)\n\nWhen multiplying by a negative number (- 2) the signs inside the parenthesis change  - to + and + to -\n\n5x - 10x² + 10x - 10 + 7x² + 4x - 4\n\nCollect like terms\n\n- 10x² + 7x² + 10x + 5x + 4x - 10 - 4\n\n- 3x² + 19x - 14\n\nThe answer is (b) - 3x² + 19x - 14\n\n- - - - - - - -s-