Solving Problems involving the laws of Logarithms

Simplify log₃ 9 + log₃ 27.

• -1

• 4

• 5

• 1

Simplify log₂ 800 − log₂ 100.

• 8

• 3

• -3

• 1

Simplify log₃ 9 + log₂4

• 4

• -4

• 0.25

• -0.25

Evaluate 3 log₂ 4.

• 2

• 3

• 4

• 6

Write 5² = 25 in logarithmic equation.

• log₅ 2 = 25

• log₂₅ 5 = 2

• log₂ 25 = 5

• log₅ 25 = 2

Tags

CCSS.HSF.BF.B.5

Given log₅ (4x − 7) = log₅ (x + 5).

Find the value of x.

• 3

• 4

• 7

• 12

Solve log (4x − 5) = log (2x − 1).

• 0

• 1

• 2

• 3

Solve lg(x) + lg(x+3) = 1

• 5

• -5

• 2

• -2

log₅(4x-7)=log₅(x+5)

• 3

• 4

• 7

• 12

log₄(3x-1)=log₄(2x+3)

• 1

• 3

• 4

• 8