document.write( "Question 147128: 2x^2=3x+3 \n" ); document.write( "
Algebra.Com's Answer #107483 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "\"2x%5E2=3x%2B3\" Start with the given equation.\r
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\n" ); document.write( "\n" ); document.write( "\"2x%5E2-3x-3=0\" Get all terms to the left side.\r
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\n" ); document.write( "\n" ); document.write( "Notice we have a quadratic equation in the form of \"ax%5E2%2Bbx%2Bc\" where \"a=2\", \"b=-3\", 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-%28-3%29+%2B-+sqrt%28+%28-3%29%5E2-4%282%29%28-3%29+%29%29%2F%282%282%29%29\" Plug in \"a=2\", \"b=-3\", and \"c=-3\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%283+%2B-+sqrt%28+%28-3%29%5E2-4%282%29%28-3%29+%29%29%2F%282%282%29%29\" Negate \"-3\" to get \"3\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%283+%2B-+sqrt%28+9-4%282%29%28-3%29+%29%29%2F%282%282%29%29\" Square \"-3\" to get \"9\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%283+%2B-+sqrt%28+9--24+%29%29%2F%282%282%29%29\" Multiply \"4%282%29%28-3%29\" to get \"-24\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%283+%2B-+sqrt%28+9%2B24+%29%29%2F%282%282%29%29\" Rewrite \"sqrt%289--24%29\" as \"sqrt%289%2B24%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%283+%2B-+sqrt%28+33+%29%29%2F%282%282%29%29\" Add \"9\" to \"24\" to get \"33\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%283+%2B-+sqrt%28+33+%29%29%2F%284%29\" Multiply \"2\" and \"2\" to get \"4\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%283%2Bsqrt%2833%29%29%2F%284%29\" or \"x+=+%283-sqrt%2833%29%29%2F%284%29\" Break up the expression. \r
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\n" ); document.write( "\n" ); document.write( "So our answers are \"x+=+%283%2Bsqrt%2833%29%29%2F%284%29\" or \"x+=+%283-sqrt%2833%29%29%2F%284%29\" \r
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\n" ); document.write( "\n" ); document.write( "which approximate to \"x=2.186\" or \"x=-0.686\"
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