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I think you meant 12x^3 + 8x^2 - 3x - 2 which is equal to:

the formula for the volume of a rectangular solid is lengthxwidthxheight

V = (3x+2)(2x+1)(2x-1) = lwh
l = 3x+2

(3x+2)(2x+1)(2x-1) = (3x+2)(2x+1)H
H =  \frac{(3x+2)(2x+1)(2x-1)}{(3x+2)(2x+1)}
H= 2x-1
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thank you for anserwing, im bryant14 and angelo110
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