Adding/Subtracting PolynomialsOnline version Match the added or subtracted quantities in parentheses with their simplified expressions by Madeline Clore 1 Group 1 2 Group 2 3 Group 3 4 Group 4 5 Group 5 6 Group 6 7 Group 7 8 Group 8 9 Group 9 10 Group 10 (12x^2 - 9x + 1) + (6x + 5) 12x^2 - 3x + 6 (x^4 + 3x^2 - 1) - (2x + 3 - 8x^2) x^4 + 11x^2 - 2x - 4 (3 + 4x - 2x^2) + (x - 6 - x^2) -3x^2 + 5x - 3 (x^2 + x - 3) + (5x^2 - 2 - 3x^3) -3x^3 + 6x^2 + x - 5 (4x - 3) + (2x) 6x - 3 (4x^2 + 9x - 11) - (8x^2 + 2x + 3) -4x^2 + 7x - 14 (2x^2 - 3 + 4x) + (9 - 5x^2 - x^3) -x^3 - 3x^2 + 4x + 6 (7x - x^4 + 9) - (10x + 6 - x^2) -x^4 + x^2 - 3x + 3 (x^2 - 2) - (x^3 - x^4 + 4) x^4 - x^3 + x^2 - 6 (8x^2 - 4x + 12) - (5x^2 + x - 3) 3x^2 - 5x + 15