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rectangular blocks of limetstone are to be cut up and used to build the front entrance of a new hotel. The volume V, in cubic metres of each block can be modelled by the function
V(x) = 2x^3+7x^2+2x-3
a) Determine the dimensions of the blocks in terms of x
Okay so i tried this question and I thought i was supposed to synthetically divide so I got (2x+6)(x+1)(x-0.5) = v(x)
however the back of the book tells me the answer is (x-3)(x-2)(x+1)
Where did I go wrong? Was I not supposed to synthetically divide?
Stacey Warren - Expert brainly.com
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Your answer is correct.
If you factor 2 out of the factor 2x + 6, and you multiply that 2 by your factor x - 0.5, you'll get exactly the answer I got.
You must have looked up the solution to another problem, or the book has an error.