document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=883155>Question 883155</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sheryl says that the solutions of the quadratic equations w^2=49 and w^2+49=0 are the same. Do you agree with sheryl? Justify your answer.\r<BR>\n" );
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document.write( "Please heelp me </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #533368 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=533368\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The solution for w^2 = 49 is<BR>\n" );
document.write( "w = square root(49)<BR>\n" );
document.write( "w = 7 or -7<BR>\n" );
document.write( "now solution for w^2 + 49 = 0 is<BR>\n" );
document.write( "subtract 49 from both sides of =<BR>\n" );
document.write( "w^2 = -49<BR>\n" );
document.write( "w = square root(-49)<BR>\n" );
document.write( "w = 7 * square root(-1)<BR>\n" );
document.write( "w = -7 * square root(-1)<BR>\n" );
document.write( "now we write square root(-1) = i, therefore<BR>\n" );
document.write( "w = 7i or -7i (these are imaginary numbers)<BR>\n" );
document.write( "sheryl is not correct since we have different solutions for w^2=49 and w^2+49=0\r<BR>\n" );
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