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Nilai x → 5 lim ​ x 2 − 4 x − 5 x 2 − 7 x + 10 ​ adalah ....

Nilai  adalah ....

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nilai dari adalah .

nilai dari begin mathsize 14px style limit as x rightwards arrow 5 of space fraction numerator x squared minus 7 x plus 10 over denominator x squared minus 4 x minus 5 end fraction end style adalah begin mathsize 14px style 1 half end style.

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Untuk , maka Diperoleh nilai . Oleh karena itu, harus difaktorkan terlebih dahulu, Jadi, nilai dari adalah .

Untuk begin mathsize 14px style x equals 5 end style, maka 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell limit as x rightwards arrow 5 of space fraction numerator x squared minus 7 x plus 10 over denominator x squared minus 4 x minus 5 end fraction end cell equals cell fraction numerator 5 squared minus 7 left parenthesis 5 right parenthesis plus 10 over denominator 5 squared minus 4 left parenthesis 5 right parenthesis minus 5 end fraction end cell row blank equals cell fraction numerator 25 minus 35 plus 10 over denominator 25 minus 20 minus 5 end fraction end cell row blank equals cell 0 over 0 end cell end table end style 

Diperoleh nilai begin mathsize 14px style 0 over 0 end style. Oleh karena itu, harus difaktorkan terlebih dahulu,

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell limit as x rightwards arrow 5 of space fraction numerator x squared minus 7 x plus 10 over denominator x squared minus 4 x minus 5 end fraction end cell equals cell limit as x rightwards arrow 5 of space fraction numerator left parenthesis x minus 5 right parenthesis left parenthesis x minus 2 right parenthesis over denominator left parenthesis x minus 5 right parenthesis left parenthesis x plus 1 right parenthesis end fraction end cell row blank equals cell limit as x rightwards arrow 5 of space fraction numerator up diagonal strike left parenthesis x minus 5 right parenthesis end strike left parenthesis x minus 2 right parenthesis over denominator up diagonal strike left parenthesis x minus 5 right parenthesis end strike left parenthesis x plus 1 right parenthesis end fraction end cell row blank equals cell limit as x rightwards arrow 5 of space fraction numerator x minus 2 over denominator x plus 1 end fraction end cell row blank equals cell fraction numerator 5 minus 2 over denominator 5 plus 1 end fraction end cell row blank equals cell 3 over 6 end cell row blank equals cell 1 half end cell end table end style 

Jadi, nilai dari begin mathsize 14px style limit as x rightwards arrow 5 of space fraction numerator x squared minus 7 x plus 10 over denominator x squared minus 4 x minus 5 end fraction end style adalah begin mathsize 14px style 1 half end style.

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