document.write( "Question 399581: I don't understand the steps that were taken to come up w/the answer. I also wrote out the exponent info in wording, being I could not figure out how to perform special characters on my computer.\r
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document.write( "3x(cube)-81y(cube) = 3(x-3y)(x(square)+3xy - 9y(square)
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Algebra.Com's Answer #282945 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 3x(cube)-81y(cube) \n" ); document.write( "------ \n" ); document.write( "3[x^3-27y^3] \n" ); document.write( "---- \n" ); document.write( "= 3[x^3-(3y)^3] \n" ); document.write( "--- \n" ); document.write( "= 3[x-(3y)][(x^2+3xy+9y^2] \n" ); document.write( "------------------- \n" ); document.write( "This is based on the form: \n" ); document.write( "(a^3-b^3) = (a-b)(a^2+ab+b^2) \n" ); document.write( "================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "======== \n" ); document.write( " |