document.write( "Question 334034: the width of a box is 2 feet less than the length, the height is 8 feet greater than the length. The box has a cubic volume of 96 cubic feet. What are the dimensions of the box? \n" ); document.write( "
Algebra.Com's Answer #239330 by mananth(16946)![]() ![]() You can put this solution on YOUR website! the width of a box is 2 feet less than the length, the height is 8 feet greater than the length. The box has a cubic volume of 96 cubic feet. What are the dimensions of the box? \n" ); document.write( "let length be x \n" ); document.write( "width = x-2 \n" ); document.write( "height = x+8 \n" ); document.write( ".. \n" ); document.write( "volume = 96 cu.ft. \n" ); document.write( ".. \n" ); document.write( "x(x-2)(x+8)= 96 \n" ); document.write( "x(x^2+6x-16)=96 \n" ); document.write( "x^3+6x^2-16x=96 \n" ); document.write( "x^3+6x^2-16x-96=0 \n" ); document.write( "x^2(x+6)-16(x+6)=0 \n" ); document.write( "(x+6)(x^2-16)=0 \n" ); document.write( "(x+6)(x-4)(x+4)=0 \n" ); document.write( "ignoring the negative value of x \n" ); document.write( "x= 4 the length \n" ); document.write( "width = 2 \n" ); document.write( "height = 12\r \n" ); document.write( "\n" ); document.write( "CHECK \n" ); document.write( "4*2*12 = 96 cu.ft\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |