document.write( "Question 2352: when you are finding the surface area of a rectangular prism and you hav to find the polynomial in simplified form how do you get the answer? Because on the rectangular prism- the length and width is x+5 and the height is 3x-1 and i got 66x+-10 +12x squared and i think i did something wrong but i cant find out where? Pllleaase help asap, thankss! \n" ); document.write( "
Algebra.Com's Answer #1029 by longjonsilver(2297)\"\" \"About 
You can put this solution on YOUR website!
surface area...6 faces, 2 of each combination...\r
\n" ); document.write( "\n" ); document.write( "2((x+5)(x+5)) + 2((x+5)(3x-1)) + 2((x+5)(3x-1))
\n" ); document.write( "= 2((x+5)(x+5)) + 4((x+5)(3x-1))
\n" ); document.write( "= 2(\"x%5E2+%2B+10x+%2B+25\") + 4(\"3x%5E2+%2B+14x+-5\")
\n" ); document.write( "= \"2x%5E2+%2B+20+x+%2B+50+%2B+12x%5E2+%2B+56x+-+20\"
\n" ); document.write( "so \"14x%5E2+%2B+76x+%2B+30\"= 0
\n" ); document.write( "\"7x%5E2+%2B+38x+%2B+15+=+0\"\r
\n" ); document.write( "\n" ); document.write( "(7x + 3)(x + 5) = 0
\n" ); document.write( "so 7x+3=0 OR x+5=0
\n" ); document.write( "so, x=-3/7 or x=-5\r
\n" ); document.write( "\n" ); document.write( "jon
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