Question

How do you factor a²+3a-4? I forgot how to do this please help

Answer 1

\[(a+4)(a-1)\]

Answer 2

two numbers whose product is -4 and whose sum is 3
those numbers are 4 and -1

Answer 3

I want to know HOW to do it (it's for my summer assignment) I dont want the answer

Answer 4

second post was my best explanation
two numbers whose product is -4
only integer choices are
1,-4
-2,2
4,-1

they have to add to get 3, so only last choice workds