document.write( "Question 150900: Remove the radicals and simplify the following equation
\n" ); document.write( "(x-3)^1/2 + (2x)^1/2 = 3
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Algebra.Com's Answer #110841 by jim_thompson5910(35256)\"\" \"About 
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\"%28x-3%29%5E%281%2F2%29+%2B+%282x%29%5E%281%2F2%29=+3\" Start with the given equation.\r
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\n" ); document.write( "\n" ); document.write( "\"sqrt%28x-3%29+%2B+sqrt%282x%29=+3\" Convert the equation from rational exponent notation to radical notation.\r
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\n" ); document.write( "\n" ); document.write( "\"sqrt%28x-3%29+=+3-+sqrt%282x%29\" Subtract \"sqrt%282x%29\" from both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"x-3+=+%283-+sqrt%282x%29%29%5E2\" Square both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"x-3+=+9-6%2Asqrt%282x%29%2B2x\" FOIL\r
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\n" ); document.write( "\n" ); document.write( "\"x-3+-9-2x=+-6%2Asqrt%282x%29\" Subtract 9 from both sides. Subtract \"2x\" from both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"-x-12=+-6%2Asqrt%282x%29\" Combine like terms.\r
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\n" ); document.write( "\n" ); document.write( "\"%28-x-12%29%5E2=+36%2A%282x%29\" Square both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"%28-x-12%29%5E2=+72x\" Multiply\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B24x%2B144=+72x\" FOIL.\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B24x%2B144-72x=0\" Subtract \"72x\" from both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2-48x%2B144=0\" Combine like terms.\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=-48\", and \"c=144\"\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-%28-48%29+%2B-+sqrt%28+%28-48%29%5E2-4%281%29%28144%29+%29%29%2F%282%281%29%29\" Plug in \"a=1\", \"b=-48\", and \"c=144\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%2848+%2B-+sqrt%28+%28-48%29%5E2-4%281%29%28144%29+%29%29%2F%282%281%29%29\" Negate \"-48\" to get \"48\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%2848+%2B-+sqrt%28+2304-4%281%29%28144%29+%29%29%2F%282%281%29%29\" Square \"-48\" to get \"2304\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%2848+%2B-+sqrt%28+2304-576+%29%29%2F%282%281%29%29\" Multiply \"4%281%29%28144%29\" to get \"576\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%2848+%2B-+sqrt%28+1728+%29%29%2F%282%281%29%29\" Subtract \"576\" from \"2304\" to get \"1728\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%2848+%2B-+sqrt%28+1728+%29%29%2F%282%29\" Multiply \"2\" and \"1\" to get \"2\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%2848+%2B-+24%2Asqrt%283%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+=+%2848%29%2F%282%29+%2B-+%2824%2Asqrt%283%29%29%2F%282%29\" Break up the fraction. \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+24+%2B-+12%2Asqrt%283%29\" Reduce. \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+24%2B12%2Asqrt%283%29\" or \"x+=+24-12%2Asqrt%283%29\" Break up the expression. \r
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\n" ); document.write( "\n" ); document.write( "So the possible answers are \"x+=+24%2B12%2Asqrt%283%29\" or \"x+=+24-12%2Asqrt%283%29\" \r
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\n" ); document.write( "\n" ); document.write( "However, if you plug in \"x+=+24%2B12%2Asqrt%283%29\", the equation will not be true. \r
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\n" ); document.write( "\n" ); document.write( "So the only answer is \"x+=+24-12%2Asqrt%283%29\"
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