document.write( "Question 202085: please help me solve the following problem f(x)= x^2-4x+3 \n" ); document.write( "
Algebra.Com's Answer #152337 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
Notice that the quadratic \"x%5E2-4x%2B3\" is in the form of \"Ax%5E2%2BBx%2BC\" where \"A=1\", \"B=-4\", and \"C=3\"\r
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\n" ); document.write( "\n" ); document.write( "Let's use the quadratic formula to solve for \"x\":\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-B+%2B-+sqrt%28+B%5E2-4AC+%29%29%2F%282A%29\" Start with the quadratic formula\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-%28-4%29+%2B-+sqrt%28+%28-4%29%5E2-4%281%29%283%29+%29%29%2F%282%281%29%29\" Plug in \"A=1\", \"B=-4\", and \"C=3\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%284+%2B-+sqrt%28+%28-4%29%5E2-4%281%29%283%29+%29%29%2F%282%281%29%29\" Negate \"-4\" to get \"4\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%284+%2B-+sqrt%28+16-4%281%29%283%29+%29%29%2F%282%281%29%29\" Square \"-4\" to get \"16\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%284+%2B-+sqrt%28+16-12+%29%29%2F%282%281%29%29\" Multiply \"4%281%29%283%29\" to get \"12\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%284+%2B-+sqrt%28+4+%29%29%2F%282%281%29%29\" Subtract \"12\" from \"16\" to get \"4\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%284+%2B-+sqrt%28+4+%29%29%2F%282%29\" Multiply \"2\" and \"1\" to get \"2\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%284+%2B-+2%29%2F%282%29\" Take the square root of \"4\" to get \"2\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%284+%2B+2%29%2F%282%29\" or \"x+=+%284+-+2%29%2F%282%29\" Break up the expression. \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%286%29%2F%282%29\" or \"x+=++%282%29%2F%282%29\" Combine like terms. \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+3\" or \"x+=+1\" Simplify. \r
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\n" ); document.write( "\n" ); document.write( "So the solutions are \"x+=+3\" or \"x+=+1\" \r
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