SOLUTION: The surface area of a closed box is 1642 square centimeters. If the length is x centimeters, the width is 6 centimeters less than twice the length and the height is 4 centimeters

Question 1171161: The surface area of a closed box is 1642 square centimeters. If the length is x centimeters, the width is 6 centimeters less than twice the length and the height is 4 centimeters more than the length, calculate the value of x.
Answer by ikleyn(52786) (Show Source): You can put this solution on YOUR website!
.


Under given conditions, the surface area equation is


    2*((x*(2x+6) + x*(x-4) + (x+6)*(x+4)) = 1642 cm^2.


Reduce it to the standard form of a quadratic equation, and then solve it,

using the quadratic formula or factoring.


You may report me about your progress and ask questions, if you have them.


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