document.write( "Question 1205658: if y = 43 +x2 find the value of Y when Y = -2
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Algebra.Com's Answer #842623 by math_tutor2020(3817)\"\" \"About 
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\n" ); document.write( "The question appears to have some typos. Please be more careful when posting the question. \r
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\n" ); document.write( "\n" ); document.write( "I'll assume the equation is \"y+=+43%2Bx%5E2\" in which you can write as y = 43 + x^2\r
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\n" ); document.write( "\n" ); document.write( "If you want to find y when x = -2, then...
\n" ); document.write( "\"y+=+43%2Bx%5E2\"
\n" ); document.write( "\"y+=+43%2B%28-2%29%5E2\"
\n" ); document.write( "\"y+=+43%2B4\"
\n" ); document.write( "\"y+=+47\"\r
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\n" ); document.write( "\n" ); document.write( "Or if you wanted to find x when y = -2, then...
\n" ); document.write( "\"y+=+43%2Bx%5E2\"
\n" ); document.write( "\"-2+=+43%2Bx%5E2\"
\n" ); document.write( "\"-2-43+=+x%5E2\"
\n" ); document.write( "\"-45+=+x%5E2\"
\n" ); document.write( "\"x%5E2+=+-45\"
\n" ); document.write( "If your teacher has not covered imaginary numbers just yet, then the answer is \"no real solutions\" since squaring a real number does not lead to a negative result.\r
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\n" ); document.write( "\n" ); document.write( "If your teacher has covered imaginary numbers, and requests the complex roots, then the next set of steps are:
\n" ); document.write( "\"x%5E2+=+-45\"
\n" ); document.write( "\"x+=+sqrt%28-45%29\" or \"x+=+-sqrt%28-45%29\"
\n" ); document.write( "\"x+=+sqrt%28-1%2A9%2A5%29\" or \"x+=+-sqrt%28-1%2A9%2A5%29\"
\n" ); document.write( "\"x+=+sqrt%28-1%29%2Asqrt%289%29%2Asqrt%285%29\" or \"x+=+-sqrt%28-1%29%2Asqrt%289%29%2Asqrt%285%29\"
\n" ); document.write( "\"x+=+i%2A3%2Asqrt%285%29\" or \"x+=+-i%2A3%2Asqrt%285%29\"
\n" ); document.write( "\"x+=+3i%2Asqrt%285%29\" or \"x+=+-3i%2Asqrt%285%29\"
\n" ); document.write( "That can be condensed to
\n" ); document.write( "\"x+=+%22%22+%2B-+3i%2Asqrt%285%29\"
\n" ); document.write( "where \"i+=+sqrt%28-1%29\"
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