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Exponential and logarithmic equations

12th grade (Year 13 in England) · 16 questions · Common Core: HSF.LE.A.4, HSF.BF.B.5

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Date

Score/ 16

  1. Question 1

    Solve: log_5(2x) = 3. Give x as a number (fractions allowed).

    Answer(as a fraction)

  2. Question 2

    Solve: 5^(x − 2) = 3125

    x =

  3. Question 3

    Solve 7ˣ = 132. Give x to 3 decimal places.

    Answer

  4. Question 4

    Solve: log_5(4x − 2) = 3. Give x as a number (fractions allowed).

    Answer(as a fraction)

  5. Question 5

    Solve: 5^(x + 1) = 25

    x =

  6. Question 6

    Solve 3ˣ = 82. Give x to 3 decimal places.

    Answer

  7. Question 7

    Solve: log_4(4x − 5) = 1. Give x as a number (fractions allowed).

    Answer(as a fraction)

  8. Question 8

    Solve: 3^(x + 3) = 9

    x =

  9. Question 9

    Solve 3ˣ = 144. Give x to 3 decimal places.

    Answer

  10. Question 10

    Solve: log_2(2x − 3) = 1. Give x as a number (fractions allowed).

    Answer(as a fraction)

  11. Question 11

    Solve: 5^(x − 3) = 5

    x =

  12. Question 12

    Solve 7ˣ = 5. Give x to 3 decimal places.

    Answer

  13. Question 13

    Solve: log_4(4x + 1) = 3. Give x as a number (fractions allowed).

    Answer(as a fraction)

  14. Question 14

    Solve: 2^(x + 2) = 16

    x =

  15. Question 15

    Solve 7ˣ = 177. Give x to 3 decimal places.

    Answer

  16. Question 16

    Solve: log_2(x − 3) = 1. Give x as a number (fractions allowed).

    Answer(as a fraction)

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  1. 125/2
  2. x = 7
  3. 2.509
  4. 127/4
  5. x = 1
  6. 4.011
  7. 9/4
  8. x = -1
  9. 4.524
  10. 5/2
  11. x = 4
  12. 0.827
  13. 63/4
  14. x = 2
  15. 2.66
  16. 5