Question

splitting of midterm 15x2-x-28

Answer 1

Answer:

(5x-7)(3x+4)

Step-by-step explanation:

$15x {}^{2} - x - 28 \\ = 15x {}^{2} - 21x + 20x - 28 \\ = 3x(5x - 7) + 4(5x - 7) \\ = (5x - 7)(3x + 4)$