document.write( "Question 1170613: Solve for x: x^2= 3x-5 \n" ); document.write( "
Algebra.Com's Answer #795449 by Theo(13342)\"\" \"About 
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the equation is x^2 = 3x - 5\r
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\n" ); document.write( "\n" ); document.write( "subtrct 3x from both sides of the equation and add 5 to both sides of the equation to get:\r
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\n" ); document.write( "\n" ); document.write( "x^2 - 3x + 5 = 0.\r
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\n" ); document.write( "\n" ); document.write( "use the quadratic equation to solve this quadratic equation to get:\r
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\n" ); document.write( "\n" ); document.write( "the roots are:\r
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\n" ); document.write( "\n" ); document.write( "z = 1.5 + 1.6583123951777i or x = 1.5 - 1.6583123951777i\r
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\n" ); document.write( "\n" ); document.write( "those are the roots of the equation, which are complex numbers that contain an imaginary part because the equation does not cross the line y = 0.\r
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\n" ); document.write( "\n" ); document.write( "if the roots were real, the graph of the equation would have cross the x-axis.\r
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\n" ); document.write( "\n" ); document.write( "the x-axis is when the value of y on the graph is equal to 0.\r
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\n" ); document.write( "\n" ); document.write( "the quadratic equation solves for the roots, even if they are not real.\r
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\n" ); document.write( "\n" ); document.write( "a complex number has a real part and an imaginary part.\r
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\n" ); document.write( "\n" ); document.write( "the real part is a real number.\r
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\n" ); document.write( "\n" ); document.write( "the imaginary part is a real number times the letter i.\r
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\n" ); document.write( "\n" ); document.write( "the letter i represents the square root of (-1).\r
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\n" ); document.write( "\n" ); document.write( "here's a reference on complex numbers.\r
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\n" ); document.write( "\n" ); document.write( "https://www.mathsisfun.com/numbers/complex-numbers.html\r
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\n" ); document.write( "\n" ); document.write( "there are many more references on the web.
\n" ); document.write( "just do a search for complex numbers.\r
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