document.write( "Question 41260: Radical expressions
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document.write( "Three students were asked to simplify sqrt10 +sqrt50. Their answers were:
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document.write( "Sqrt10(1+sqrt5),
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document.write( "Sqrt10+5sqrt2, and
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document.write( "Sqrt2(5+sqrt5).
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document.write( "Which if any is correct?
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document.write( "Which is in simplest form?
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document.write( "Thanks so much \n" );
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Algebra.Com's Answer #26636 by zeynep(43)![]() ![]() ![]() You can put this solution on YOUR website! sqrt10+sqrt50 \n" ); document.write( "sqrt 50= sqrt10.sqrt5 \n" ); document.write( "so,\r \n" ); document.write( "\n" ); document.write( "sqrt10+sqrt50 = sqrt10+sqrt10.sqrt5 \r \n" ); document.write( "\n" ); document.write( "since sqrt10 is the common factor, we can write;\r \n" ); document.write( "\n" ); document.write( "sqrt10+sqrt50 = sqrt10+sqrt10.sqrt5 = sqrt10(1+sqrt5) \n" ); document.write( "So , the first answer you sent is right.\r \n" ); document.write( "\n" ); document.write( "Let's talk about the second answer;\r \n" ); document.write( "\n" ); document.write( "sqrt50 = sqrt 25.2= sqrt25.sqrt2 = 5.sqrt2 (Here we used that sqrt25 equals to 5) \n" ); document.write( "So,\r \n" ); document.write( "\n" ); document.write( "sqrt10+sqrt50 = sqrt10+5.sqrt2 \r \n" ); document.write( "\n" ); document.write( "Therefore, your second answer is right, too.\r \n" ); document.write( "\n" ); document.write( "When it comes to the last answer you sent;\r \n" ); document.write( "\n" ); document.write( "sqrt10+sqrt50 = sqrt2.5 + sqrt 25.2= sqrt2.sqrt5+sqrt25.sqrt2 =\r \n" ); document.write( "\n" ); document.write( "sqrt2.sqrt5 + 5.sqrt2 = sqrt2(sqrt5+5) (For the last step we factored out the common factor which was sqrt2.)\r \n" ); document.write( "\n" ); document.write( "So, your last answer is also right.\r \n" ); document.write( "\n" ); document.write( "I think first answer and last answer are in th simplest forms. However answer 2 can be simplified more. Actually answer 3 is the simplified form of answer 2. \n" ); document.write( " |