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Unformatted text preview: as 1=2 or make the denominator zero in a term. Here is an example: = x 2x 6 4x 24x2 6x = xx 2xx 6 4x 6xx 6 24x2 6x x2 2xxx 6 4x 24xx 6 24x2 6x + x2 6x 24x2 6x 24x2 6x x2 6x 24 24 x2 6x 0 = , x 6 0 CHECK ( ) 6 26 6 46 2462 6 6 undef 23 undef ! 6 is not a solution CHECK 0 20 6 40 2402 6 0 13 undef undef ! 0 is not a solution , Both values when plugged in make the denom zero thus there is no solution the original solutions are extraneous...
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 Spring '09
 mcmillian
 Math

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