document.write( "Question 75789: 1. Factor out the GCF: \"4x%5E2%2B36y%5E2\" = is my answer correct cane some one please check for me \"2%5E2x%5E2%2B2%5E2%2A3%5E2y%5E2\"
\n" ); document.write( " 4(x^2+9y^2) \r
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\n" ); document.write( "\n" ); document.write( "2. Factor by grouping: 3x^2-12x+5x-20
\n" ); document.write( "(x-4) (3x+5) please see if my answer is correct when it say grouping what should i do .
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Algebra.Com's Answer #54442 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "1. Factor out the GCF:\r\n" );
document.write( "\"4x%5E2%2B36y%5E2\" = is my answer correct \r\n" );
document.write( "can someone please check for me \"2%5E2x%5E2%2B2%5E2%2A3%5E2%2Ay%5E2\" \r\n" );
document.write( "\"4%28x%5E2%2B9y%5E2%29\"\r\n" );
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document.write( "Yes that's correct \r\n" );
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document.write( "2. Factor by grouping: \"3x%5E2-12x%2B5x-20\"\r\n" );
document.write( "\"%28x-4%29%283x%2B5%29\" please see if my answer is correct \r\n" );
document.write( "when it say grouping what should i do .\r\n" );
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document.write( "You got the correct answer by inspection of the FOIL\r\n" );
document.write( "method but you skipped the intermediate steps, which\r\n" );
document.write( "makes the process easier:\r\n" );
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document.write( "3x² - 12x + 5x - 20\r\n" );
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document.write( "Factor 3x out of the first two terms \r\n" );
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document.write( "3x(x - 4) + 5x - 20\r\n" );
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document.write( "Factor 5 out of the last two terms\r\n" );
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document.write( "3x(x - 4) + 5(x - 4)\r\n" );
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document.write( "I'll do some coloring:\r\n" );
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document.write( "3x(x - 4) + 5(x - 4)\r\n" );
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document.write( "Factor the red (x - 4) out leaving\r\n" );
document.write( "the sum of the green factors in \r\n" );
document.write( "parentheses\r\n" );
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document.write( "(x - 4)(3x + 5)\r\n" );
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document.write( "Edwin
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