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Harlamova29_29 [7]
3 years ago
10

Solve 3^2−1 - 12. 3^X+81=0 with proper steps and explanation

Mathematics
1 answer:
atroni [7]3 years ago
4 0

Answer:  x = 1.788587

Step-by-step explanation: 3^2 − 1 - 12. 3^X + 81 = 0

                                             -12^X + 89 = 0

                                             -12. 3^X + 89 + -89 = 0 + -89

                                             -12. 3^X = -89

                                             -12. 3^X/-1 = -89/-1

                                              12. 3^X = 89

                                              log (12.3^X) = log (89)

                                              x * (log (12.3)) = log (89)

                                              x = log (89)/ log (12.3)

                                              x = 1.788587

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