SOLUTION: what is the answer for 4ac-2abc if a=2, b=-7, and c=-4

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Question 1124255: what is the answer for 4ac-2abc if a=2, b=-7, and c=-4
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

4ac-2abc if a=2, b=-7, and c=-4 will be:
4%2A2%28-4%29-2%2A2%28-7%29%28-4%29
8%28-4%29-4%28-7%29%28-4%29
-32-4%2828%29
-32-112
-144