document.write( "Question 358342: Let w = 2 + 5i and z = -3 + 4i. \r
\n" ); document.write( "\n" ); document.write( "Compute 2ww + |z|^2 in Cartesian coordinates. The second w is the conjugate of w, my apologies, I don't know how to show it. \r
\n" ); document.write( "\n" ); document.write( "If I understand correctly I'm to get an x and y coordinate however, when I try to compute I end up with a single number. Any help would be greatly appreciated.
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Algebra.Com's Answer #255730 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Let w = 2 + 5i and z = -3 + 4i.
\n" ); document.write( "Compute 2ww + |z|^2 in Cartesian coordinates.
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\n" ); document.write( "2(2 + 5i)*(2 - 5i) = 2*(4+25) = 58
\n" ); document.write( "|z| = the magnitude of z, = sqrt(3^2 + 4^2) = 5
\n" ); document.write( "--> 63 or (63,0) since there's no i term.\r
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