document.write( "Question 1208477: how to evaluate 7 to the power of 2 - 3 to the power of 2 + 4\r
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Algebra.Com's Answer #846913 by ikleyn(52781) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "As it is expressed in wording form, I do understand it this way:\r\n" );
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document.write( "    (1)  7 to the power of (2-3) is 7 to the power of (-1),  or   = .\r\n" );
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document.write( "    (2)     to the power  of (2+4)  is    to the power  6,  or  \r\n" );
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document.write( "                      =  =  = .    ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved, answered and explained.\r
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\n" ); document.write( "\n" ); document.write( "The overall impression is as if someone slept for 400 years and then suddenly woke up and started ventriloquizing.\r
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\n" ); document.write( "\n" ); document.write( "In reality, in contemporary Math nobody and never uses such wording description as it is in this post -
\n" ); document.write( "- it never works properly and it is commonly considered as a hopelessly outdated bad old style.\r
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\n" ); document.write( "\n" ); document.write( "Instead, for clarity, a standard formal mathematical writing was invented, developed
\n" ); document.write( "and is used to avoid ambiguity and misunderstanding.\r
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\n" ); document.write( "\n" ); document.write( "Formal mathematical writing is a standard style of thought transference in Math everywhere - in Math articles,
\n" ); document.write( "in Math magazines, in Math monographs, in Math textbooks, in Math web-sites and even in separate Math problems.\r
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\n" ); document.write( "\n" ); document.write( "This style of wording in Math, as presented in the post, was used thousands and hundreds years ago, but it is just, probably,
\n" ); document.write( "300 - 400 years or about it as this wording style is not used. Formal mathematical language was developed and is in use, instead.\r
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\n" ); document.write( "\n" ); document.write( "Perhaps, you have heard or know the old fairy tales by the Brothers Grimm, that relate to life of 400 - 500 and more years ago,
\n" ); document.write( "where the evil old witch cooked porridge in a pot. This verbal style in your post refers precisely to that time.\r
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\n" ); document.write( "\n" ); document.write( "Whether you could turn the wheel of history 400 years back, then your wording would be appropriate.\r
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\n" ); document.write( "\n" ); document.write( "Or, it may be better to say that even then such wording would not be appropriate, since it is ambiguous.\r
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\n" ); document.write( "\n" ); document.write( "        The oral style of transference thoughts is not used
\n" ); document.write( "        in printed documents since the invention of printing.\r
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\n" ); document.write( "\n" ); document.write( "The bottom line is :   do not post problems presented in this style to this forum in order for do not scare the readers.\r
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\n" ); document.write( "\n" ); document.write( "We just live in the XXI century.   The year now is   2024.\r
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\n" ); document.write( "\n" ); document.write( "------- Specially for Edwin with his objections, I repeat -------\r
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\n" ); document.write( "\n" ); document.write( "        The oral style of transference thoughts is not used
\n" ); document.write( "        in printed documents since the invention of printing.\r
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