Question

Factorise by splitting the middle term if 2x2 - X-21 according to class 9th​

Answer 1

Answer:

hope! it helps you

Step-by-step explanation:

Answer 2

Answer:

$2 {x}^{2} - x - 21 \\ 2 {x}^{2} + 6x - 7x - 21 \\ 2x(x + 3) - 7(x + 3) \\ (x + 3)(2x - 7)$