Cookymonsterviz Cookymonsterviz Math Answered IV. Perform the indicated operation 1. x² + 7x + 12 by x + 4 2. (3x + 8x - 35) = (x + 5) 3. (X + 8)(x - 8) 4. (2a + 3b - 4) + (a - 2b + 3) 5. (5a - 3b + 4c)