IB skill practice

Solve exponential equations

Solve exponential equations by rewriting both sides with a common base and explaining why the exponents can be compared.

Paper 1 5 marks Difficulty 2

Solve exponential equations - common-base equation A8

Solve \( 2^{x+4}=2^8 \). Enter \(x\).

Worked practice: result and interpretation

Calculate the requested result first, then choose the interpretation that follows from it.