document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1041211>Question 1041211</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Q: If a, b and y are positive real numbers with such that none of them is equal to 1 and b^2a+6 = y^2, which of these must be true? \r<BR>\n" );
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document.write( "A) y = b^a+3<BR>\n" );
document.write( "B) 2a + 6 = 2 <BR>\n" );
document.write( "C) b = y <BR>\n" );
document.write( "D) b = 2 <BR>\n" );
document.write( "E) b(2a + 6) = 2y\r<BR>\n" );
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document.write( "Explain too plz :) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #656171 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=656171\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  b^2a+6 = y^2,<BR>\n" );
document.write( "y= sqrt (b^(2a +6)), is y=b^(a+3) and that works.<BR>\n" );
document.write( "let a=3 and b=2. <BR>\n" );
document.write( "2^(12)=y^2<BR>\n" );
document.write( "y=2^6=64<BR>\n" );
document.write( "y=b^(a+3)=2^6=64<BR>\n" );
document.write( "y=sqrt(b^2a+6)=[b^(2a+6)]^(1/2), and that is b^(a+3) ANSWER<BR>\n" );
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document.write( "2a+6=2.  <BR>\n" );
document.write( "If b=y, this is true. If it is b^(2a+6)=b^2, then it works in all cases.<BR>\n" );
document.write( "Suppose, however, b=2 and a=3  Then 2^(12)=y^2, and y^2=4096 and y=64.  <BR>\n" );
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document.write( "b(2a+6)=2y is a misunderstanding of raising to a power.  b^2a+6 is raising to a power, not multiplying.<BR>\n" );
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document.write( "b=2.  It can be, but they are all positive real numbers except 1.<BR>\n" );
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document.write( "b=y only if 2a+6=2. Since they can be positive real numbers except 1, that isn't \"must\"<BR>\n" );
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