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Pertanyaan

Himpunan penyelesaian dari pertidaksamaan berikut x 2 − x − 6 x 2 + 2 x − 3 ​ ​ < ∣ ∣ ​ x + 2 x − 1 ​ ∣ ∣ ​ adalah ....

Himpunan penyelesaian dari pertidaksamaan berikut  adalah ....

  1. x less than negative 3 space a t a u space minus 2 less than x less or equal than negative 1 third

  2. x less or equal than negative 3 space a t a u space minus 2 less than x less than negative 1 third

  3. x less than negative 1 third space a t a u space 1 less than x less than 3

  4. x less or equal than negative 3 space a t a u space minus 2 less than x less or equal than 1

  5. negative 3 less or equal than x less than negative 2 space a t a u space 1 less or equal than x less than 3

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G. Albiah

Master Teacher

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Jawaban terverifikasi

Jawaban

nilai x yang memenuhi adalah atau .

nilai x yang memenuhi adalah x less or equal than negative 3 atau negative 2 less than x less than negative 1 third.

Pembahasan

Iris kedua daerah didapat : Jadi, nilai x yang memenuhi adalah atau .

fraction numerator x squared plus 2 x minus 3 over denominator x squared minus x minus 6 end fraction greater or equal than 0 fraction numerator open parentheses x plus 3 close parentheses begin display style open parentheses x minus 1 close parentheses end style over denominator open parentheses x minus 3 close parentheses begin display style open parentheses x plus 2 close parentheses end style end fraction greater or equal than 0

x less or equal than negative 3 comma space minus 2 less than x less or equal than 1 comma space x greater than 3 square root of fraction numerator x squared plus 2 x minus 3 over denominator x squared minus x minus 6 end fraction end root less than open vertical bar fraction numerator x minus 1 over denominator x plus 2 end fraction close vertical bar square root of fraction numerator open parentheses x plus 3 close parentheses open parentheses x minus 1 close parentheses over denominator open parentheses x minus 3 close parentheses open parentheses x plus 2 close parentheses end fraction end root less than open vertical bar fraction numerator x minus 1 over denominator x plus 2 end fraction close vertical bar K u a d r a t k a n space k e d u a space r u a s space colon fraction numerator open parentheses x plus 3 close parentheses open parentheses x minus 1 close parentheses over denominator open parentheses x minus 3 close parentheses open parentheses x plus 2 close parentheses end fraction less than open parentheses x minus 1 close parentheses squared over open parentheses x plus 2 close parentheses squared fraction numerator open parentheses x plus 3 close parentheses open parentheses x minus 1 close parentheses over denominator open parentheses x minus 3 close parentheses open parentheses x plus 2 close parentheses end fraction minus open parentheses x minus 1 close parentheses squared over open parentheses x plus 2 close parentheses squared less than 0 fraction numerator open parentheses x plus 3 close parentheses open parentheses x minus 1 close parentheses open parentheses x plus 2 close parentheses over denominator left parenthesis x minus 3 right parenthesis left parenthesis x plus 2 right parenthesis squared end fraction minus fraction numerator open parentheses x minus 3 close parentheses open parentheses x minus 1 close parentheses squared over denominator open parentheses x minus 3 close parentheses open parentheses x plus 2 close parentheses squared end fraction less than 0 fraction numerator open parentheses x plus 3 close parentheses open parentheses x minus 1 close parentheses open parentheses x plus 2 close parentheses minus open parentheses x minus 3 close parentheses open parentheses x minus 1 close parentheses squared over denominator open parentheses x minus 3 close parentheses open parentheses x plus 2 close parentheses squared end fraction less than 0 fraction numerator open parentheses x minus 1 close parentheses open parentheses open parentheses x plus 3 close parentheses open parentheses x plus 2 close parentheses minus open parentheses x minus 3 close parentheses open parentheses x minus 1 close parentheses close parentheses over denominator open parentheses x minus 3 close parentheses open parentheses x plus 2 close parentheses squared end fraction less than 0 fraction numerator open parentheses x minus 1 close parentheses open parentheses open parentheses x squared plus 5 x plus 6 close parentheses minus open parentheses x squared minus 4 x plus 3 close parentheses close parentheses over denominator open parentheses x minus 3 close parentheses open parentheses x plus 2 close parentheses squared end fraction less than 0 fraction numerator open parentheses x minus 1 close parentheses open parentheses 9 x plus 3 close parentheses over denominator left parenthesis x minus 3 right parenthesis left parenthesis x plus 2 right parenthesis squared end fraction less than 0

Iris kedua daerah didapat :

Jadi, nilai x yang memenuhi adalah x less or equal than negative 3 atau negative 2 less than x less than negative 1 third.

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