document.write( "Question 429219: a box has a square base, with xcm sides, and the height 2cm more then the length, the surface area of the box=120cm^2, find x.. \n" ); document.write( "

Algebra.Com's Answer #298179 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "a box has a square base, with xcm sides and (x+2)height
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document.write( "Surface area = x^2 + x^2 + 4[x(x+2)]
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document.write( "  2x^2 +4x^2 + 8x = 120 cm^2
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document.write( "     6x^2 + 8x - 120 = 0
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document.write( "     3x^2 + 4x - 60 = 0
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document.write( "  x = 3.8549cm   |tossing out negative solution for length
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