document.write( "Question 147615: I need help factoring these equations. 8x^3+27y^3 (^ means to the power of) and (x^2)(y^3)+xy \n" ); document.write( "
Algebra.Com's Answer #107991 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! need help factoring these equations. \n" ); document.write( "8x^3+27y^3 \n" ); document.write( "This is \"the sum of cubes\". \n" ); document.write( "Rewrite as follows: \n" ); document.write( "(2x)^3 + (3y)^3 = (2x+3y)((2x)^2 -(2x)(3y) + (3y)^2) \n" ); document.write( "= (2x+3y)(4x^2 -6xy + 9y^2) \n" ); document.write( "===================\r \n" ); document.write( "\n" ); document.write( " (x^2)(y^3)+xy \n" ); document.write( "= (xy)(xy^2 + 1)\r \n" ); document.write( "\n" ); document.write( "======================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |