document.write( "Question 448632: quadratic formula: solve the equation \r
\n" ); document.write( "\n" ); document.write( "2x^2+12x-6=0\r
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\n" ); document.write( "\n" ); document.write( "x^2-6x+7=0\r
\n" ); document.write( "\n" ); document.write( "3x^2+11x+10=0\r
\n" ); document.write( "\n" ); document.write( "please solve them i really need helppp soonnnn
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Algebra.Com's Answer #308703 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
I'll do the first two to get you started.\r
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\n" ); document.write( "\n" ); document.write( "\"2x%5E2%2B12x-6=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=2\", \"b=12\", and \"c=-6\"\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-%2812%29+%2B-+sqrt%28+%2812%29%5E2-4%282%29%28-6%29+%29%29%2F%282%282%29%29\" Plug in \"a=2\", \"b=12\", and \"c=-6\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-12+%2B-+sqrt%28+144-4%282%29%28-6%29+%29%29%2F%282%282%29%29\" Square \"12\" to get \"144\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-12+%2B-+sqrt%28+144--48+%29%29%2F%282%282%29%29\" Multiply \"4%282%29%28-6%29\" to get \"-48\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-12+%2B-+sqrt%28+144%2B48+%29%29%2F%282%282%29%29\" Rewrite \"sqrt%28144--48%29\" as \"sqrt%28144%2B48%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-12+%2B-+sqrt%28+192+%29%29%2F%282%282%29%29\" Add \"144\" to \"48\" to get \"192\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-12+%2B-+sqrt%28+192+%29%29%2F%284%29\" Multiply \"2\" and \"2\" to get \"4\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-12+%2B-+8%2Asqrt%283%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+=+%28-12%29%2F%284%29+%2B-+%288%2Asqrt%283%29%29%2F%284%29\" Break up the fraction. \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+-3+%2B-+2%2Asqrt%283%29\" Reduce. \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+-3%2B2%2Asqrt%283%29\" or \"x+=+-3-2%2Asqrt%283%29\" Break up the expression. \r
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\n" ); document.write( "\n" ); document.write( "So the answers are \"x+=+-3%2B2%2Asqrt%283%29\" or \"x+=+-3-2%2Asqrt%283%29\" \r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2-6x%2B7=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=1\", \"b=-6\", and \"c=7\"\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-%28-6%29+%2B-+sqrt%28+%28-6%29%5E2-4%281%29%287%29+%29%29%2F%282%281%29%29\" Plug in \"a=1\", \"b=-6\", and \"c=7\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%286+%2B-+sqrt%28+%28-6%29%5E2-4%281%29%287%29+%29%29%2F%282%281%29%29\" Negate \"-6\" to get \"6\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%286+%2B-+sqrt%28+36-4%281%29%287%29+%29%29%2F%282%281%29%29\" Square \"-6\" to get \"36\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%286+%2B-+sqrt%28+36-28+%29%29%2F%282%281%29%29\" Multiply \"4%281%29%287%29\" to get \"28\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%286+%2B-+sqrt%28+8+%29%29%2F%282%281%29%29\" Subtract \"28\" from \"36\" to get \"8\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%286+%2B-+sqrt%28+8+%29%29%2F%282%29\" Multiply \"2\" and \"1\" to get \"2\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%286+%2B-+2%2Asqrt%282%29%29%2F%282%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+=+%286%29%2F%282%29+%2B-+%282%2Asqrt%282%29%29%2F%282%29\" Break up the fraction. \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+3+%2B-+sqrt%282%29\" Reduce. \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+3%2Bsqrt%282%29\" or \"x+=+3-sqrt%282%29\" Break up the expression. \r
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\n" ); document.write( "\n" ); document.write( "So the answers are \"x+=+3%2Bsqrt%282%29\" or \"x+=+3-sqrt%282%29\" \r
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