document.write( "Question 1056393: Complex Number: Solve the equation 2x^2 + 2 = 0. \n" ); document.write( "

Algebra.Com's Answer #671523 by ikleyn(53937) $\"\"$ $\"About$

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\n" ); document.write( "Complex Number: Solve the equation 2x^2 + 2 = 0.
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document.write( "2x^2 + 2 = 0.\r\n" );
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document.write( "It is equivalent to \r\n" );
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document.write( "2x^2 = -2\r\n" );
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document.write( "which is equivalent to\r\n" );
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document.write( "x^2 = -1,\r\n" );
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document.write( "which has two solution in complex numbers\r\n" );
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document.write( "x = i   and   x = -i.\r\n" );
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document.write( "Answer. the solutions are i and -i.\r\n" );
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