What is the volume of a box whose length is 12-2x, width is 7-2x and height is x?

L*W=height
Can someone help me with this problem please

3 answers

50
I had already answered this question.
What did you not like about my answer

ok, once more ...

volume of a box = length x width x height
= (12-2x)(7-2x)(x)
what is the answer 21 or 42 for height.