<PRE><B>Question 348144</B>
What are the dimensions of a rectangular box that 
has w=x h=x and length=x+1? total Surface Area of the box = 130cm^2.
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Equation:
SA = 2(lw)+2(lh)+2(wh) = 2(lw+lh+wh)
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130 = 2[(x+1)x + (x+1)x + x^2]
65 = x^2+x+x^2+x + x^2
3x^2 + 2x-65 = 0
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Use the quadratic formula to get:
x = 4.333
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width = 4.333
height = 4.333
length = 5.333
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Cheers,
Stan H.
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