document.write( "Question 147538This question is from textbook algebra
\n" ); document.write( ": I don't understand this particular question. It says to solve by the method that's easiest to me, but all the methods are difficult for me. The problem is 3x^2=2x+5. \n" ); document.write( "
Algebra.Com's Answer #107911 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "\"3x%5E2=2x%2B5\" Start with the given equation.\r
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\n" ); document.write( "\n" ); document.write( "\"3x%5E2-2x-5=0\" Subtract 2x from both sides. Subtract 5 from both sides.\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=3\", \"b=-2\", and \"c=-5\"\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-%28-2%29+%2B-+sqrt%28+%28-2%29%5E2-4%283%29%28-5%29+%29%29%2F%282%283%29%29\" Plug in \"a=3\", \"b=-2\", and \"c=-5\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%282+%2B-+sqrt%28+%28-2%29%5E2-4%283%29%28-5%29+%29%29%2F%282%283%29%29\" Negate \"-2\" to get \"2\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%282+%2B-+sqrt%28+4-4%283%29%28-5%29+%29%29%2F%282%283%29%29\" Square \"-2\" to get \"4\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%282+%2B-+sqrt%28+4--60+%29%29%2F%282%283%29%29\" Multiply \"4%283%29%28-5%29\" to get \"-60\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%282+%2B-+sqrt%28+4%2B60+%29%29%2F%282%283%29%29\" Rewrite \"sqrt%284--60%29\" as \"sqrt%284%2B60%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%282+%2B-+sqrt%28+64+%29%29%2F%282%283%29%29\" Add \"4\" to \"60\" to get \"64\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%282+%2B-+sqrt%28+64+%29%29%2F%286%29\" Multiply \"2\" and \"3\" to get \"6\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%282+%2B-+8%29%2F%286%29\" Take the square root of \"64\" to get \"8\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%282+%2B+8%29%2F%286%29\" or \"x+=+%282+-+8%29%2F%286%29\" Break up the expression. \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%2810%29%2F%286%29\" or \"x+=++%28-6%29%2F%286%29\" Combine like terms. \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+5%2F3\" or \"x+=+-1\" Simplify. \r
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\n" ); document.write( "\n" ); document.write( "So our answers are \"x+=+5%2F3\" or \"x+=+-1\" \r
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