Answer:
i believe it's 39
Step-by-step explanation:
29 -39 = -10
12.2 or 12 2/9
You set them equal to each other and solve
(x-1)(x+4)
I.e x(x+4)-1(x+4)
Xsquare +4x -x -4
Xsquare +3x -4
Answer:the answer is 9
36 divided by 4=9