Question

simplify
2x^2−x−3

Answer 1

(2x -3(x+1)

Answer 2

(2x-3)(x+1)

Answer 3

explain dude!

Answer 4

ok - sorry
to factor these you need to find two numbers with a product of -3
and a sum of 2* one of numbers + other number which gives -1
here they are -3 and +1 and you multiply the +1 by 2 to give you -3 +2(1) = -1

Answer 5

i do these by making 3 columns as follows
2x -3 -1x (aim for this)
-------------------------
2 X x -3 * +1 -3 + 1*2 = -1