document.write( "Question 158043: solve: \r
\n" ); document.write( "\n" ); document.write( "18x^2+ 9x+2=0\r
\n" ); document.write( "\n" ); document.write( "x^2+14x-4=0\r
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Algebra.Com's Answer #116452 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
I'll do the first one to get you started\r
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\n" ); document.write( "\n" ); document.write( "\"18x%5E2%2B9x%2B2=0\" Start with the given equation.\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=18\", \"b=9\", and \"c=2\"\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-%289%29+%2B-+sqrt%28+%289%29%5E2-4%2818%29%282%29+%29%29%2F%282%2818%29%29\" Plug in \"a=18\", \"b=9\", and \"c=2\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-9+%2B-+sqrt%28+81-4%2818%29%282%29+%29%29%2F%282%2818%29%29\" Square \"9\" to get \"81\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-9+%2B-+sqrt%28+81-144+%29%29%2F%282%2818%29%29\" Multiply \"4%2818%29%282%29\" to get \"144\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-9+%2B-+sqrt%28+-63+%29%29%2F%282%2818%29%29\" Subtract \"144\" from \"81\" to get \"-63\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-9+%2B-+sqrt%28+-63+%29%29%2F%2836%29\" Multiply \"2\" and \"18\" to get \"36\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-9+%2B-+3i%2Asqrt%287%29%29%2F%2836%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+=+%28-9%2B3i%2Asqrt%287%29%29%2F%2836%29\" or \"x+=+%28-9-3i%2Asqrt%287%29%29%2F%2836%29\" Break up the expression. \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-3%2Bi%2Asqrt%287%29%29%2F%2812%29\" or \"x+=+%28-3-i%2Asqrt%287%29%29%2F%2812%29\" Reduce\r
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\n" ); document.write( "\n" ); document.write( "So the answers are \"x+=+%28-3%2Bi%2Asqrt%287%29%29%2F%2812%29\" or \"x+=+%28-3-i%2Asqrt%287%29%29%2F%2812%29\" \r
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\n" ); document.write( "\n" ); document.write( "which approximate to \"x=-0.25%2B0.22%2Ai\" or \"x=-0.25-0.22%2Ai\"
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