document.write( "Question 452709: Hello,
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document.write( "I'm just a little confused by what the following question is asking:
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document.write( "What two numbers are represented by each of the following?
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document.write( "1. -6 plus or minus (sqrt 6) I think it is asking for the answer of -6 + (sqrt 6) and -6 - (sqrt 6) since nothing can be factored out of (sqrt 6).\r
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document.write( "2. 4/3 plus or minus (i sqrt 2) /3 I think the answers would be (4+ (isqrt2))/3 and ((4 - (i sqrt 2))/3
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document.write( "but it could be 1 + ((1+isqrt2))/3 and 1 - ((1+isqrt2))/3\r
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document.write( " and the next question:\r
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document.write( "what must be added to make the given expression a trinomial square?
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document.write( "m^2 - 4m + ? I think the answer is 4, if the equation were factored it would be (m-2)(m-2)\r
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document.write( "a^2 + 12a + ? not sure how to do this equation however.
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document.write( "please show me how to correctly do these equations. Thank you \n" );
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Algebra.Com's Answer #311146 by ilana(307)![]() ![]() ![]() You can put this solution on YOUR website! 1. I think you are correct. \n" ); document.write( "2. I think your first choice is correct. \n" ); document.write( "These seem to just want you to know the meaning of \"plus or minus\". \n" ); document.write( "3. You are correct, 4 is the answer. \n" ); document.write( "4. Look at what you did for #3. You took the coefficient of m and divided it by 2, and then squared it. (-4/2 = -2, and (-2)^2 = 4.) This comes from the fact that (a + b)^2 = a^2 + 2ab + b^2. So in this case, for #4, divide 12 by 2 (and get 6), and then square that (and get 36). So the answer is 36. The factored expression would be (a + 6)(a + 6). \n" ); document.write( " |