Plz tell me what goes with what

Step-by-step explanation:

x²+5x-84

look for the factors of 84 that when you add together it will give +5

look for the factors of 84 that when you multiply together it will give -84

12 and 7

           addition,                           multiplication

-12+7 = -5                                      -84

-12-7= -19                                        84

+12-7 = +5                                      -84       correct

then equate into the =5x and -84

x²+12x-7x-84

then factorize

x(x+12)-7(x+12)

(x-7)(x+12)

idk

step-by-step explanation:

use that smart brain