Topics โ€บ Precalculus โ€บ Solve Logarithmic Equations
Precalculus ยท F-LE

Solve Logarithmic Equations

To solve log equations, use log properties to condense to a single log, then rewrite as an exponential equation and solve.

PrecalculusCommon Core HSF-LE.A.4F-LEVerified correct โœ“

Worked examples

Solve: ln(x + -1) = 2
Answer: 8.3891
Solve: ln(x + 2) = 2
Answer: 5.3891

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Build up to this

Properties of Logarithms โ€” Product, Quotient, Power RulesInverse Functions โ€” Find and Verify

More Precalculus topics

Complex Numbers in Polar Form โ€” r(cos ฮธ + i sin ฮธ)Multiply and Divide Complex Numbers in Polar FormDe Moivre's Theorem โ€” Powers and Roots of Complex NumbersVectors โ€” Components, Addition, and Scalar MultiplicationDot Product of Vectors โ€” Magnitude and Angle Between VectorsMatrix Addition, Subtraction, and Scalar MultiplicationMatrix Multiplication โ€” 2ร—2 and 2ร—1 Cases2ร—2 Matrix Inverse and Determinant