document.write( "Question 702777: The sides of a triangle are 2x3-3x2+8 ,3x2-6x-5 , 7x3-10x+5 .Find the perimeter of triangle. \n" ); document.write( "
Algebra.Com's Answer #433182 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
\r\n" );
document.write( "To find the perimeter of any figure, we add up the lengths of the sides.\r\n" );
document.write( "\r\n" );
document.write( "So we add up the measures of the sides by putting a + sign between\r\n" );
document.write( "the expressions for the sides.\r\n" );
document.write( "\r\n" );
document.write( " 2x³-3x²+8  +  3x²-6x-5  +  7x³-10x+5\r\n" );
document.write( "\r\n" );
document.write( "We close up the spaces\r\n" );
document.write( "\r\n" );
document.write( " 2x³-3x²+8+3x²-6x-5+7x³-10x+5\r\n" );
document.write( "\r\n" );
document.write( "We pick out the terms that have x³, which are 2x³+7x³, \r\n" );
document.write( "combine them, get 9x³, so we take them away and put in 9x³\r\n" );
document.write( "\r\n" );
document.write( " 9x³-3x²+8+3x²-6x-5-10x+5\r\n" );
document.write( "\r\n" );
document.write( "We pick out the terms that have x², which are -3x²+3x², \r\n" );
document.write( "combine them, get 0, so we just take them out.\r\n" );
document.write( "\r\n" );
document.write( " 9x³+8-6x-5-10x+5\r\n" );
document.write( "\r\n" );
document.write( "We pick out the terms that have x, which are -6x-10x, \r\n" );
document.write( "combine them, get -16x, so we take them away and put in -16x\r\n" );
document.write( "\r\n" );
document.write( " 9x³+8-16x-5+5\r\n" );
document.write( "\r\n" );
document.write( "Pick out the terms that are just numbers, which are +8-5+5, \r\n" );
document.write( "combine them, get +8, so we take them away and put in +8.\r\n" );
document.write( "\r\n" );
document.write( " 9x³+8-16x, which is the answer.\r\n" );
document.write( "\r\n" );
document.write( "That's the formula for the perimeter.  (The actual numerical \r\n" );
document.write( "value of the perimeter will vary depending on what somebody \r\n" );
document.write( "might choose for x, but all we are looking for is this formula \r\n" );
document.write( "for the perimeter.  Quite often we will be asked to find \r\n" );
document.write( "something, and what they really mean is for us to find a \r\n" );
document.write( "formula for it, as in this case).\r\n" );
document.write( "\r\n" );
document.write( "Edwin
\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );