document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=253834>Question 253834</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1. Write the a + bi form of (7 - i)^2 (simplify)<BR>\n" );
document.write( "2.  R = 1/3a(x + c) solve for x<BR>\n" );
document.write( "3.  x^2 + 2x + 4 = 0<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #186319 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=186319\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1. Write the a + bi form of (7 - i)^2 (simplify)<BR>\n" );
document.write( "(7 - i)*(7 - i)<BR>\n" );
document.write( "FOIL<BR>\n" );
document.write( "49 - 7i - 7i + i^2<BR>\n" );
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document.write( "49 - 14i + (-1)<BR>\n" );
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document.write( "49 - 1 - 14i<BR>\n" );
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document.write( "48 - 14i<BR>\n" );
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document.write( "2. R = 1/3a(x + c) solve for x<BR>\n" );
document.write( "1/3a(x + c) = R<BR>\n" );
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document.write( "Multiply both sides by 3<BR>\n" );
document.write( "a(x + c) = 3R<BR>\n" );
document.write( ";<BR>\n" );
document.write( "Multiply whats inside the brackets by a<BR>\n" );
document.write( "ax + ac = 3R<BR>\n" );
document.write( "Subtract ac from both sides<BR>\n" );
document.write( "ax = 3R - ac<BR>\n" );
document.write( ";<BR>\n" );
document.write( "Divide both sides by a<BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%283R+-+ac%29%29%2Fa ALIGN=MIDDLE  ALT=\"%28%283R+-+ac%29%29%2Fa\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "3. x^2 + 2x + 4 = 0<BR>\n" );
document.write( "Solve by completing the square<BR>\n" );
document.write( "x^2 + 2x + __ = -4<BR>\n" );
document.write( "We can complete the square with<BR>\n" );
document.write( "x^2 + 2x + 1 = - 4 + 1<BR>\n" );
document.write( "(x + 1)^2 = -3<BR>\n" );
document.write( "x + 1 = +/-<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28-3%29 ALIGN=MIDDLE  ALT=\"sqrt%28-3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-1+-+sqrt%283%29%2Ai ALIGN=MIDDLE  ALT=\"-1+-+sqrt%283%29%2Ai\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-1+%2B+sqrt%283%29%2Ai ALIGN=MIDDLE  ALT=\"-1+%2B+sqrt%283%29%2Ai\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );