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Akar-akar persamaan 3 2 x + 1 − 28. 3 x + .9 = 0 a d a l ah x 1 ​ d an x 2 ​ . J ika x 1 ​ > x 2 ​ , maka ni l ai 3 x 1 ​ + x 2 ​ = ...

Akar-akar persamaan 

  1. - 5

  2. - 1

  3. 4

  4. 5

  5. 7

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R. RGFLSATU

Master Teacher

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Pembahasan

3 to the power of 2 x plus 1 end exponent space minus space 28.3 to the power of x space plus 9 space equals space 0 space  3.3 to the power of 2 x end exponent space minus space 28.3 to the power of x space plus 9 space equals space 0 space  m i s a l colon space y space equals space 3 to the power of x  3 y squared space minus space 28 y space plus space 9 space equals space 0  left parenthesis 3 y space minus space 1 right parenthesis left parenthesis y space minus space 9 right parenthesis space equals space 0  y equals 1 third a t a u space y equals 9  1 third equals 3 to the power of x space a t a u space 9 equals 3 to the power of x  minus 1 equals x subscript 2 space rightwards arrow space 2 equals x subscript 1  3 x subscript 1 minus x subscript 2 equals 3 open parentheses 2 close parentheses minus open parentheses negative 1 close parentheses equals 7

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7

Esthy Lambayu

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Himpunan penyelesaian dari persamaan eksponen 1 0 2 x − 1 0 2 x − 1 = 90 adalah...

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0.0

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