document.write( "Question 322828: Solve for x:
\n" ); document.write( "2x(sq)-4x=3\r
\n" ); document.write( "\n" ); document.write( "I have the answer down as 4+/-(sqrt 40) over 4 but i need to know the steps that led to there....plz hlp
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Algebra.Com's Answer #231097 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "\"2x%5E2-4x=3\" Start with the given equation.\r
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\n" ); document.write( "\n" ); document.write( "\"2x%5E2-4x-3=0\" Subtract 3 from both sides.\r
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\n" ); document.write( "\n" ); document.write( "Notice that the quadratic \"2x%5E2-4x-3\" is in the form of \"Ax%5E2%2BBx%2BC\" where \"A=2\", \"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%282%29%28-3%29+%29%29%2F%282%282%29%29\" Plug in \"A=2\", \"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%282%29%28-3%29+%29%29%2F%282%282%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%282%29%28-3%29+%29%29%2F%282%282%29%29\" Square \"-4\" to get \"16\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%284+%2B-+sqrt%28+16--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+=+%284+%2B-+sqrt%28+16%2B24+%29%29%2F%282%282%29%29\" Rewrite \"sqrt%2816--24%29\" as \"sqrt%2816%2B24%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%284+%2B-+sqrt%28+40+%29%29%2F%282%282%29%29\" Add \"16\" to \"24\" to get \"40\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%284+%2B-+sqrt%28+40+%29%29%2F%284%29\" Multiply \"2\" and \"2\" to get \"4\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%284+%2B-+2%2Asqrt%2810%29%29%2F%284%29\" Simplify the square root (note: If you need help with simplifying square roots, check out this solver) \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%284%2B2%2Asqrt%2810%29%29%2F%284%29\" or \"x+=+%284-2%2Asqrt%2810%29%29%2F%284%29\" Break up the expression. \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%282%2Bsqrt%2810%29%29%2F%282%29\" or \"x+=+%282-sqrt%2810%29%29%2F%282%29\" Reduce.\r
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\n" ); document.write( "\n" ); document.write( "So the solutions are \"x+=+%282%2Bsqrt%2810%29%29%2F%282%29\" or \"x+=+%282-sqrt%2810%29%29%2F%282%29\"
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