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27 October, 11:13

Solve the equation log4 (x + 20) = 3

x=

DONE

+3
Answers (2)
  1. 27 October, 11:35
    0
    Answer To The Whole Assignment

    1. x = 44

    2. x=7

    3. (in order first box to last) 2,5,1,4,3

    4. x = - 5

    5. D. This number is a true solution of the original equation.

    6. x=2

    7. A. log2[x (x - 6) ] = 4

    8. C. x2 - 6x - 16 = 0

    9. x=8

    10. x=1, x=2

    11. There is no solution.

    12. x=3 or x=-3

    13. C. Only - 3 is an extraneous solution.

    14. The bases of the logarithms are not the same. The one-to-one property does not apply when the bases are not the same. The change of base formula should have been used to write the logarithms with the same base.
  2. 27 October, 11:41
    0
    x = 44

    Step-by-step explanation:

    log4 (x+20) = 3

    4³ = x + 20

    x + 20 = 64

    x = 44

    (Correct me if i am wrong)
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