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Mathematical Methods — Question 4

QCAA 2025, Paper 1 · 1 mark

Q4 · 2025 · Technology-freeSimple familiar1 mark

QUESTION 4

Solve for

x

in the equation

\ln(x)+\ln(2)=\ln(8)

.

(A)

3

(B)

4

(C)

6

(D)

10

ABCD

Question linkOriginal paper

WORKED SOLUTION

Answer B

1 mark

ANSWER

B —

4

Worked solution

\ln(x)+\ln2=\ln(2x)=\ln8

, so

2x=8

and

x=4

; option B.

Selects option B.

[1 mark]

Worked explanation by QCE Vault; correct option verified against the QCAA answer key.

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