Question

Factor this trinomial. x2+3x-4

Answer 1

          x² + 3x - 4
 rewrite with two middle terms that add to give three but multiply to yield -4
         x² + x - 4x - 4
           
by factorizing
       x(x + 1) - 4(x + 1)

⇒   (x - 4) (x + 1) = x² + 3x - 4

Answer 2

Answer:

(x - 1)(x + 4)

Step-by-step explanation:

So basically, we need two numbers that add to get 3 and multiply to get -4.

We can use -1 and 4.

-1 + 4 = 3

-1 * 4 = -4

So, this makes it true.

Best of Luck!