Question

answer these question fast
plz plz plz ​

Answer 1

Step-by-step explanation:

18x^2-x-4

=2(9x^2-x-2)

Hope it is helpful.

Answer 2

Answer:

( 2x-1)(9x+4)

Step-by-step explanation:

$18x^{2} -x-4$

18x ^2+8x-9x-4

2x(9x+4)-1(9x+4)

(2x-1)(9x+4)

To find the factors 8 and -9

Multiply 18 and 4=72

Factors of 72=1,2,3,4,6,8,9.12,18,24,36,72

The factors having difference of 1(-x)

8 and 9

Hope this will help