OMG unbelievable.
Firstly, I didn't think about setting it equal to 2000 and then moving the 2000 over to make it equal to 0.
Secondly, What was also messing me up was that I wasn't sure if looking for roots was the way to solve this, not realizing that was the way to solve it and that I had...
Another thing to note is this problem is at the end of a Chapter dealing with:
The Rational Zero Theorm
The Fundamental Theorem of Algebra
The Linear Factorization Theorem
Descartes Rule
The only thing I left out is the beginning format of the V(x) which was:
(x)(x+10)(40-(x+x+10))
The x being depth
The x + 10 being length
The (40 - (x+x+10)) being width(40) minus (depth + length)
OK I compact the problem into the below:
-2x3+30x2-20x2+300x
Now I need a constant to try the...
Homework Statement
Problem - If the volume of the carry-on luggage is 2000 cubic inches, determine two possibilities for its depth. Where necessary, round to the nearest tenth of an inch
Homework Equations
V(x) = x(x+10)(30-2x)
Volume function is given above
The Attempt at a Solution
I...