document.write( "Question 1094450: Which method should be used (factoring, square root property, completing the square, and the quadratic formula)
\n" ); document.write( "to solve each of the following quadratic equations. Each method can be used only ONCE and why that method?
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\n" ); document.write( " A) 4x^2 – 27 = 0
\n" ); document.write( " B) 4x^2 – 8x – 5 = 0
\n" ); document.write( " C) 4x^2 – 8x – 12 = 0
\n" ); document.write( " D) 4x^2 – 9x – 7 = 0
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Algebra.Com's Answer #709017 by ikleyn(52782)\"\" \"About 
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\n" ); document.write( "Which method should be used (factoring, square root property, completing the square, and the quadratic formula)
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document.write( "A) 4x^2 – 27 = 0            I'd use factoring.\r\n" );
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document.write( "B) 4x^2 – 8x – 5 = 0        completing the square, or the quadratic formula could be used.\r\n" );
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document.write( "C) 4x^2 – 8x – 12 = 0       As the first step, I'd divide both sides by 4 and then apply completing the square.\r\n" );
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document.write( "D) 4x^2 – 9x – 7 = 0        Quadratic formula.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Different people may have different preferences.\r
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\n" ); document.write( "\n" ); document.write( "Ideally  if you know all these methods equally well and can apply any of them. You may even apply DIFFERENT methods to check yourself.\r
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\n" ); document.write( "On solving quadratic equations, 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
\n" ); document.write( "\n" ); document.write( "    - HOW TO complete the square - Learning by examples \r
\n" ); document.write( "\n" ); document.write( "    - HOW TO solve quadratic equation by completing the square - Learning by examples \r
\n" ); document.write( "\n" ); document.write( "    - Solving quadratic equations without quadratic formula\r
\n" ); document.write( "\n" ); document.write( "    - Who is who in quadratic equations\r
\n" ); document.write( "\n" ); document.write( "    - Using Vieta's theorem to solve qudratic equations and related problems\r
\n" ); document.write( "\n" ); document.write( "    - Using quadratic equations to solve word problems\r
\n" ); document.write( "\n" ); document.write( "    - HOW TO solve the problem on quadratic equation mentally and avoid boring calculations \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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\n" ); document.write( "\n" ); document.write( "Save the link to this online textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-I\r
\n" ); document.write( "\n" ); document.write( "https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson\r
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\n" ); document.write( "\n" ); document.write( "to your archive and use it when it is needed.\r
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