Question

$factorise \: 15x {}^{2} - x - 28$

Answer 1

HELLO DEAR,

15x² - x - 28

⇒15x² + 20x - 21x - 28

⇒5x(3x + 4) - 7(3x + 4)

⇒(5x - 7)(3x + 4)

I HOPE ITS HELP YOU DEAR,
THANKS