document.write( "Question 274206: can someone help me with this?\r
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document.write( "Factor completely\r
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document.write( "16x2 +48xy + 36y2\r
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Algebra.Com's Answer #200130 by Monkibat(7)![]() ![]() ![]() You can put this solution on YOUR website! Factor 16x^2+48xy+36y^2\r \n" ); document.write( "\n" ); document.write( "Factor out a Greatest Common Factor first. The greatest common factor is 4. \n" ); document.write( "4(4x^2+12xy+9y^2)\r \n" ); document.write( "\n" ); document.write( "Now factor the polynomial in the parenthesis. \n" ); document.write( "Look at 4x^2 Break it into factor choices: 1x4 or 2x2\r \n" ); document.write( "\n" ); document.write( "Look at 9y^2 Break it into factor choices: 1x9 or 3x3\r \n" ); document.write( "\n" ); document.write( "Lets first try 2x2 and 3x3 for the factor choices: \n" ); document.write( "(2x 3y)(2x 3y)\r \n" ); document.write( "\n" ); document.write( "There are two x's and 2y's because of the 4x^2 and the 9y^2. Our answer has to equal the middle term 12xy.\r \n" ); document.write( "\n" ); document.write( "Now we multiply to see if we picked the right factors of 4 and 9.\r \n" ); document.write( "\n" ); document.write( "The outer 2x multiplied with the outer 3y equals 6xy. The inner 3y multiplied with the inner 2x equals 6xy. 6xy+6xy=12xy That works.\r \n" ); document.write( "\n" ); document.write( "Now we have to figure out our signs. Since 9y^2 and 12xy are both positive both of our signs have to be positive.\r \n" ); document.write( "\n" ); document.write( "The answer is: \n" ); document.write( "(2x+3y)(2x+3y) \n" ); document.write( " |