Question 1164099
A company produces boxes that are 5m long, 4m wide and 3m high. The company wants to increase each dimension by the same amount so that the new volume is twice as big. How much in centimeters is the increase in dimension.
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Multiply each dimension by {{{root(3,2)}}}
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{{{5*root(3,2)*4*root(3,2)*3*root(3,2) = 2*(5*4*3)}}}
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That is multiplied by the same amount.
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Increase by x cms:
(5+x)*(4+x)*(3+x) = 2*5*4*3 = 120
x^3 + 12x^2 + 47x -60 + 0
x = 1