document.write( "Question 112065: I have to completely factor 5x^2-12=-17x. Can someone help me with this problem. \n" ); document.write( "
Algebra.Com's Answer #81759 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
\"5x%5E2-12=-17x\" Start with the given equation\r
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\n" ); document.write( "\n" ); document.write( "\"5x%5E2-12%2B17x=0\" Add 17x to both sides\r
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\n" ); document.write( "\n" ); document.write( "\"5x%5E2%2B17x-12=0\" Rearrange the terms\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( "Starting with the general quadratic\r
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\n" ); document.write( "\n" ); document.write( "\"ax%5E2%2Bbx%2Bc=0\"\r
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\n" ); document.write( "\n" ); document.write( "the general solution using the quadratic equation is:\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29\"\r
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\n" ); document.write( "\n" ); document.write( "So lets solve \"5%2Ax%5E2%2B17%2Ax-12=0\" ( notice \"a=5\", \"b=17\", and \"c=-12\")\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-17+%2B-+sqrt%28+%2817%29%5E2-4%2A5%2A-12+%29%29%2F%282%2A5%29\" Plug in a=5, b=17, and c=-12\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-17+%2B-+sqrt%28+289-4%2A5%2A-12+%29%29%2F%282%2A5%29\" Square 17 to get 289 \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-17+%2B-+sqrt%28+289%2B240+%29%29%2F%282%2A5%29\" Multiply \"-4%2A-12%2A5\" to get \"240\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-17+%2B-+sqrt%28+529+%29%29%2F%282%2A5%29\" Combine like terms in the radicand (everything under the square root)\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-17+%2B-+23%29%2F%282%2A5%29\" Simplify the square root (note: If you need help with simplifying the square root, check out this solver)\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-17+%2B-+23%29%2F10\" Multiply 2 and 5 to get 10\r
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\n" ); document.write( "\n" ); document.write( "So now the expression breaks down into two parts\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-17+%2B+23%29%2F10\" or \"x+=+%28-17+-+23%29%2F10\"\r
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\n" ); document.write( "\n" ); document.write( "Lets look at the first part:\r
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\n" ); document.write( "\n" ); document.write( "\"x=%28-17+%2B+23%29%2F10\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=6%2F10\" Add the terms in the numerator\r
\n" ); document.write( "\n" ); document.write( "\"x=3%2F5\" Divide\r
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\n" ); document.write( "\n" ); document.write( "So one answer is\r
\n" ); document.write( "\n" ); document.write( "\"x=3%2F5\"\r
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\n" ); document.write( "\n" ); document.write( "Now lets look at the second part:\r
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\n" ); document.write( "\n" ); document.write( "\"x=%28-17+-+23%29%2F10\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=-40%2F10\" Subtract the terms in the numerator\r
\n" ); document.write( "\n" ); document.write( "\"x=-4\" Divide\r
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\n" ); document.write( "\n" ); document.write( "So another answer is\r
\n" ); document.write( "\n" ); document.write( "\"x=-4\"\r
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\n" ); document.write( "\n" ); document.write( "So our solutions are:\r
\n" ); document.write( "\n" ); document.write( "\"x=3%2F5\" or \"x=-4\"\r
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\n" ); document.write( "\n" ); document.write( "Notice when we graph \"5%2Ax%5E2%2B17%2Ax-12\", we get:\r
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\n" ); document.write( "\n" ); document.write( "\"+graph%28+500%2C+500%2C+-14%2C+13%2C+-14%2C+13%2C5%2Ax%5E2%2B17%2Ax%2B-12%29+\"\r
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\n" ); document.write( "\n" ); document.write( "and we can see that the roots are \"x=3%2F5\" and \"x=-4\". This verifies our answer
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