document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=228591>Question 228591</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can someone please please help me with these questions. I am preparing for a quiz on Monday.\r<BR>\n" );
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document.write( "1) z sqrt 80zu^2 - u sqrt 5z^3\r<BR>\n" );
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document.write( "2) sqrt z +16 = sqrt 7z+12\r<BR>\n" );
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document.write( "3) sqrt -6w+16=w\r<BR>\n" );
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document.write( "4) sqrt 10+8 / -5 sqrt 10+1\r<BR>\n" );
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document.write( "Thank you in advance </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #169700 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=169700\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z%2Asqrt%2880zu%5E2%29+-+u%2Asqrt%285z%5E3%29 ALIGN=MIDDLE  ALT=\"z%2Asqrt%2880zu%5E2%29+-+u%2Asqrt%285z%5E3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Factor to reveal the perfect squares<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z%2Asqrt%2816%2A5%2Az%2Au%5E2%29+-+u%2Asqrt%285%2Az%5E2%2Az%29 ALIGN=MIDDLE  ALT=\"z%2Asqrt%2816%2A5%2Az%2Au%5E2%29+-+u%2Asqrt%285%2Az%5E2%2Az%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "extract the squares and combine like terms<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4uz%2Asqrt%285z%29+-+uz%2Asqrt%285z%29 ALIGN=MIDDLE  ALT=\"4uz%2Asqrt%285z%29+-+uz%2Asqrt%285z%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3uz%2Asqrt%285z%29 ALIGN=MIDDLE  ALT=\"3uz%2Asqrt%285z%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ";<BR>\n" );
document.write( ";<BR>\n" );
document.write( "2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28z%2B16%29+=+sqrt%287z%2B12%29 ALIGN=MIDDLE  ALT=\"sqrt%28z%2B16%29+=+sqrt%287z%2B12%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Square both sides:<BR>\n" );
document.write( "z + 16 = 7z + 12<BR>\n" );
document.write( "16 - 12 = 7z - z<BR>\n" );
document.write( "4 = 6z<BR>\n" );
document.write( "z = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2F6 ALIGN=MIDDLE  ALT=\"4%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2F3 ALIGN=MIDDLE  ALT=\"2%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ";<BR>\n" );
document.write( ";<BR>\n" );
document.write( "3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28-6w%2B16%29+=+w ALIGN=MIDDLE  ALT=\"sqrt%28-6w%2B16%29+=+w\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "square both sides<BR>\n" );
document.write( "-6w + 16 = w^2<BR>\n" );
document.write( "0 = w^2 + 6w - 16<BR>\n" );
document.write( "Factors to:<BR>\n" );
document.write( "(w+8)(w-2) = 0<BR>\n" );
document.write( "Two solutions<BR>\n" );
document.write( "w = -8<BR>\n" );
document.write( "w = +2; <BR>\n" );
document.write( "Check both solutions in the original equation (only one is valid)<BR>\n" );
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document.write( "4) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2810%2B8%29%2F%28-5%2Asqrt%2810%2B1%29%29 ALIGN=MIDDLE  ALT=\"sqrt%2810%2B8%29%2F%28-5%2Asqrt%2810%2B1%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2818%29%2F%28-5%2Asqrt%2811%29%29 ALIGN=MIDDLE  ALT=\"sqrt%2818%29%2F%28-5%2Asqrt%2811%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%289%2A2%29%2F%28-5%2Asqrt%2811%29%29 ALIGN=MIDDLE  ALT=\"sqrt%289%2A2%29%2F%28-5%2Asqrt%2811%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-3%2Asqrt%282%29%2F%285%2Asqrt%2811%29%29 ALIGN=MIDDLE  ALT=\"-3%2Asqrt%282%29%2F%285%2Asqrt%2811%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >  </SPAN>\n" );
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