Respuesta :

X^2-7x+12 because when you distribute its
X*X +
(X*-4)+(x*-3) +
-3*-4

Answer:

x² - 7x + 12

Step-by-step explanation:

(x - 3)(x - 4)       FOIL

x²- 4x - 3x + 12     Combine like terms

x² - 7x + 12