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)![]() ![]() 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( \n" ); document.write( "= \n" ); document.write( "so \n" ); document.write( " \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 \n" ); document.write( " \n" ); document.write( " |