document.write( "Question 297396: The area of a rectangle is 20x^2-27x-8. The length is 4x+1. What is the width? \n" ); document.write( "
Algebra.Com's Answer #214173 by richwmiller(17219) You can put this solution on YOUR website! let's factor \n" ); document.write( "20x^2-27x-8= \n" ); document.write( "We need factors of -160 which add to -27 \n" ); document.write( "we know we have 4x and 1\r \n" ); document.write( "\n" ); document.write( "-32 and +5 \n" ); document.write( "factor 20 \n" ); document.write( "5 and 4 and -8 \n" ); document.write( "factor -32 4 and -8 \n" ); document.write( "-32 +5=-27 \n" ); document.write( "-32 4 and -8 \n" ); document.write( "(4x+1)*(5x-8) \n" ); document.write( "The width is 5x-8 \n" ); document.write( "We could also have divided 20x^2-27x-8 \n" ); document.write( "4x-1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |