Respuesta :

ahmedalieducation
first multiply the first by the first (x*x=X^2)
second multiply the second by the second (4*3=12)
finally the multiply the first by the second and the second by the first then add them together (X*3)+(4*X)= 7X
the answer is:
X^2+7X+12=(X+4)(X+3)