Question 936339: the volume of a box is 84x^3+448 x^2+140x. what is the possible expression for the length and width of the box if the height is 7x? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! the volume of a box is 84x^3+448 x^2+140x. what is the possible expression for the length and width of the box if the height is 7x?
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Divide by 7x to get: 12x^2 + 64x + 20
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Factor::
4(3x^2 + 16x + 5)
4(3x+1)(x+5)
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length = 4(3x+1) or 4(x+5)
length = 4(x+5) or 4(3x+1)
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Cheers,
Stan H.
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