Answer:
Okay so for this you will use the FOIL (first, outer, inner, last) method.
Step-by-step explanation:
So, first you take the x from (x-3) and multiply it by the x in (x-4).
So, now you have x^2
Then you do the outer which would be x multiplied by 4.
Now you have -4x.
Then you multiply the inner which is -3 times x.
Which is -3x.
Now its the last which is -3 times -4 which equals 12.
Now you put them in order:
x^2 - 4x - 3x + 12
Lastly, you combine like terms:
x^2 -1 + 12