document.write( "Question 1166430: Find inverse of function f(x) = x^2 - 5x ? \n" ); document.write( "
Algebra.Com's Answer #790951 by harpazo1965(1)\"\" \"About 
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f(x) = x^2 - 5x\r
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\n" ); document.write( "\n" ); document.write( "Let y = f(x)\r
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\n" ); document.write( "\n" ); document.write( "y = x^2 - 5x\r
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\n" ); document.write( "\n" ); document.write( "x = y^2 - 5y\r
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\n" ); document.write( "\n" ); document.write( "x = y(y - 5)\r
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\n" ); document.write( "\n" ); document.write( "x/(y- 5) = y\r
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\n" ); document.write( "\n" ); document.write( "Here, y cannot be isolated. This function does not have an inverse.
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