Answer:
1. (x + 4)(9x + 6)
2. (3x + 6)(3x + 4)
3. (9x + 4)(x + 6)
Step-by-step explanation:
9x² + 42x + 24
9x² + 36x + 6x + 24
9x(x + 4) + 6(x + 4)
(x + 4)(9x + 6)
9x² + 30x + 24
9x² + 12x + 18x + 24
3x(3x + 4) + 6(3x + 4)
(3x + 4)(3x + 6)
9x² + 58x + 24
9x² + 54x + 4x + 24
9x(x + 6) + 4(x + 6)
(9x + 4)(x + 6)
