document.write( "Question 72343This question is from textbook Elementary Algebra
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document.write( ": Factor if possible
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document.write( " 2x^2+7x+3 \n" );
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Algebra.Com's Answer #51699 by Edwin McCravy(20056)![]() ![]() You can put this solution on YOUR website! \r\n" ); document.write( "2x² + 7x + 3\r\n" ); document.write( "2x² + 7x + 3\r\n" ); document.write( "\r\n" ); document.write( "1. Multiply the blue 2 by the red 3, getting 6.\r\n" ); document.write( "2. Think of two positive integers which have product 6 and\r\n" ); document.write( " which have SUM (since the purple sign is +) equal to the\r\n" ); document.write( " green 7. Such positive integers are 1 and 6 because \r\n" ); document.write( " 1×6 = 6 and 1+6 = 7\r\n" ); document.write( "3. Rewrite the green 7 using 1 and 6 \r\n" ); document.write( "\r\n" ); document.write( "2x² + (1 + 6)x + 3\r\n" ); document.write( "\r\n" ); document.write( "4. Remove the parentheses using the distributive principle.\r\n" ); document.write( "\r\n" ); document.write( "2x² + 1x + 6x + 3\r\n" ); document.write( "\r\n" ); document.write( "5. Factor x out of the first two terms and factor 3 out of\r\n" ); document.write( " the last two terms:\r\n" ); document.write( "\r\n" ); document.write( "x(2x + 1) + 3(2x + 1)\r\n" ); document.write( "\r\n" ); document.write( "6. Factor the (2x + 1) out of both terms\r\n" ); document.write( "\r\n" ); document.write( "(2x + 1)(x + 3)\r\n" ); document.write( "\r\n" ); document.write( "----------------------------------------------\r\n" ); document.write( "\r\n" ); document.write( "Another example:\r\n" ); document.write( "6x² + x — 2\r\n" ); document.write( "6x² + 1x — 2\r\n" ); document.write( "\r\n" ); document.write( "1. Multiply the blue 6 by the red 2, getting 12.\r\n" ); document.write( "2. Think of two positive integers which have product 12 and\r\n" ); document.write( " which have DIFFERENCE (since the purple sign is —) equal to the\r\n" ); document.write( " green 1. Such positive integers are 4 and 3 because \r\n" ); document.write( " 4×3 = 12 and 4—3 = 1\r\n" ); document.write( "3. Rewrite the green 1 using 4 and 3 \r\n" ); document.write( "\r\n" ); document.write( "6x² + (4 — 3)x — 2\r\n" ); document.write( "\r\n" ); document.write( "4. Remove the parentheses using the distributive principle.\r\n" ); document.write( "\r\n" ); document.write( "6x² + 4x — 3x — 2\r\n" ); document.write( "\r\n" ); document.write( "5. Factor 2x out of the first two terms and factor -1 out of\r\n" ); document.write( " the last two terms:\r\n" ); document.write( "\r\n" ); document.write( "2x(3x + 2) — 1(3x + 2)\r\n" ); document.write( "\r\n" ); document.write( "6. Factor the (3x + 2) out of both terms\r\n" ); document.write( "\r\n" ); document.write( "(3x + 2)(2x — 1)\r\n" ); document.write( "\r\n" ); document.write( "Edwin\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |