# SOLUTION: What are the dimensions of a rectangular box that has w=x h=x and length=x+1? I have given up! I came up with answers that did not match, and then tried to put answers into the q

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 Click here to see ALL problems on Quadratic Equations Question 348144: What are the dimensions of a rectangular box that has w=x h=x and length=x+1? I have given up! I came up with answers that did not match, and then tried to put answers into the quadratic formula, and still nothing. Your help would be much appreciated. Thank you.Answer by stanbon(57967)   (Show Source): You can put this solution on YOUR website!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. ------------------ Equation: SA = 2(lw)+2(lh)+2(wh) = 2(lw+lh+wh) --- 130 = 2[(x+1)x + (x+1)x + x^2] 65 = x^2+x+x^2+x + x^2 3x^2 + 2x-65 = 0 ---- Use the quadratic formula to get: x = 4.333 ----- width = 4.333 height = 4.333 length = 5.333 ===================== Cheers, Stan H. =================