document.write( "Question 1083159: The sm of a number and twic its square is 35. Find the number \n" ); document.write( "

Algebra.Com's Answer #697190 by ikleyn(52781) $\"\"$ $\"About$

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\n" ); document.write( "The $\"highlight%28cross%28sm%29%29\"$ sum of a number and $\"highlight%28cross%28twic%29%29\"$ twice its square is 35. Find the number
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document.write( "x + 2x^2 = 35,\r\n" );
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document.write( "2x^2 + x - 35 = 0.\r\n" );
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document.write( "Solve this quadratic equation using the quadratic formula.\r\n" );
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\n" ); document.write( "\n" ); document.write( "On quadratic formula, see the lessons \r
\n" ); document.write( "\n" ); document.write( "    - Introduction into Quadratic Equations\r
\n" ); document.write( "\n" ); document.write( "    - PROOF of quadratic formula by completing the square\r
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\n" ); document.write( "\n" ); document.write( "Also, you have this free of charge online textbook in ALGEBRA-I in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this textbook under the topic \"Quadratic equations\". \r
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