document.write( "Question 174863: how do i break this down to find the value of p? p^2+13p-30=0 \n" ); document.write( "
Algebra.Com's Answer #129931 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "\"p%5E2%2B13p-30=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 \"ap%5E2%2Bbp%2Bc\" where \"a=1\", \"b=13\", and \"c=-30\"\r
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\n" ); document.write( "\n" ); document.write( "Let's use the quadratic formula to solve for p\r
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\n" ); document.write( "\n" ); document.write( "\"p+=+%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( "\"p+=+%28-%2813%29+%2B-+sqrt%28+%2813%29%5E2-4%281%29%28-30%29+%29%29%2F%282%281%29%29\" Plug in \"a=1\", \"b=13\", and \"c=-30\"\r
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\n" ); document.write( "\n" ); document.write( "\"p+=+%28-13+%2B-+sqrt%28+169-4%281%29%28-30%29+%29%29%2F%282%281%29%29\" Square \"13\" to get \"169\". \r
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\n" ); document.write( "\n" ); document.write( "\"p+=+%28-13+%2B-+sqrt%28+169--120+%29%29%2F%282%281%29%29\" Multiply \"4%281%29%28-30%29\" to get \"-120\"\r
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\n" ); document.write( "\n" ); document.write( "\"p+=+%28-13+%2B-+sqrt%28+169%2B120+%29%29%2F%282%281%29%29\" Rewrite \"sqrt%28169--120%29\" as \"sqrt%28169%2B120%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"p+=+%28-13+%2B-+sqrt%28+289+%29%29%2F%282%281%29%29\" Add \"169\" to \"120\" to get \"289\"\r
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\n" ); document.write( "\n" ); document.write( "\"p+=+%28-13+%2B-+sqrt%28+289+%29%29%2F%282%29\" Multiply \"2\" and \"1\" to get \"2\". \r
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\n" ); document.write( "\n" ); document.write( "\"p+=+%28-13+%2B-+17%29%2F%282%29\" Take the square root of \"289\" to get \"17\". \r
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\n" ); document.write( "\n" ); document.write( "\"p+=+%28-13+%2B+17%29%2F%282%29\" or \"p+=+%28-13+-+17%29%2F%282%29\" Break up the expression. \r
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\n" ); document.write( "\n" ); document.write( "\"p+=+%284%29%2F%282%29\" or \"p+=++%28-30%29%2F%282%29\" Combine like terms. \r
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\n" ); document.write( "\n" ); document.write( "\"p+=+2\" or \"p+=+-15\" Simplify. \r
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\n" ); document.write( "\n" ); document.write( "So the answers are \"p+=+2\" or \"p+=+-15\" \r
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