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Nilai x yang memenuhi persamaan 2 lo g . 2 lo g ( 2 x + 1 + 3 ) = 1 + 2 lo g x adalah ...

Nilai x yang memenuhi persamaan adalah ...

  1. blank squared log space 3

  2. blank cubed log space 2

  3. -1 atau 3

  4. 8 atau 1 half

  5. log 2 over 3

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R. RGFLSATU

Master Teacher

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Pembahasan

blank squared log. space squared log space left parenthesis 2 to the power of x plus 1 end exponent plus space 3 right parenthesis space equals space 1 space plus space squared log space x  squared log. space squared log space left parenthesis 2 to the power of x plus 1 end exponent plus space 3 right parenthesis space equals space 1 space plus space squared log space x  squared log. space squared log space left parenthesis 2 to the power of x plus 1 end exponent space plus space 3 right parenthesis space equals space squared log space 2 x  squared log space left parenthesis 2 to the power of x plus 1 end exponent space plus space 3 right parenthesis space equals space 2 to the power of x  2 to the power of x plus 1 end exponent space plus space 3 space equals space 2 to the power of 2 x end exponent  2 to the power of 2 x end exponent minus 2 to the power of x plus 1 end exponent space minus space 3 space equals 0  2 to the power of 2 x end exponent minus 2.2 to the power of x space minus space 3 space equals 0  m i s a l colon space y space equals space 2 to the power of x  y squared space minus space 2 y space minus space 3 space equals space 0  left parenthesis y space minus 3 right parenthesis space left parenthesis y space plus space 1 right parenthesis space equals space 0  y space equals space 3 space a t a u space y space equals space minus 1  3 space equals space 2 to the power of x  log space 3 space equals space log space 2 to the power of x  space log space 3 space equals space x space log space 2  space 2 log space 3 space equals space x    U n t u k space " minus 1 space equals space 2 x space apostrophe space t i d a k space a d a space s o l u s i space k a r e n a space t i d a k space a d a space b i l a n g a n space p o s i t i f space y a n g space d i p a n g k a t k a n space  a k a n space m e n g h a s i l k a n space b i l a n g a n space n e g a t i f

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