document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=66330>Question 66330</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/093979862x/algebrahomeworkh>An Incremental Development</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> PLease help to simplify\r<BR>\n" );
document.write( "\n" );
document.write( "4i^7 - the square root of -5 times the square root of -5 + the square root of 7 times the square root of -7 - the square root of -16 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #47050 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=47050\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 4i^7 - the square root of -5 times the square root of -5 + the square root of 7 times the square root of -7 - the square root of -16<BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "4(i^7)-(sqrt-5)(sqrt-5)+(sqrt7)(sqrt-7)-sqrt(-16)<BR>\n" );
document.write( "=4(-i)-(-5)+7i-4i<BR>\n" );
document.write( "= -4i+5+3i<BR>\n" );
document.write( "=-i+5<BR>\n" );
document.write( "=5-i<BR>\n" );
document.write( "________________<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );