Answer:
x^2 + x -12
Step-by-step explanation:
Use the FOIL method.
Multiply the first terms:
x • x = x^2
Multiply the outer terms:
x • -3 = -3x
Multiply the inner terms:
4 • x = 4x
Multiply the last terms:
4 • -3 = -12
Combine like terms:
x^2 + (-3x + 4x) -12
x^2 + x -12
