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Free Logarithms Calculator - Simplify logarithmic expressions using algebraic rules step-by-step.
Enter the logarithmic expression below which you want to simplify. The logarithm calculator simplifies the given logarithmic expression by using the laws of logarithms.
x∙(x-3) = 2 2. Or. x 2-3x-4 = 0. Solving the quadratic equation: x 1,2 = [3±√(9+16) ] / 2 = [3±5] / 2 = 4,-1. Since the logarithm is not defined for negative numbers, the answer is: x = 4. Problem #2. Find x for. log 3 (x+2) - log 3 (x) = 2. Solution: Using the quotient rule: log 3 ((x+2) / x) = 2. Changing the logarithm form according to ...
Logarithm Calculator. Use this log calculator to easily calculate the logarithm of a number with a given base: log b (x). The default base is the natural logarithm e. Calculate. Quick navigation: What is a logarithm? How to calculate logarithms? Example log calculations. Applications of logarithms. What is a logarithm?
This free log calculator solves for the unknown portions of a logarithmic expression using base e, 2, 10, or any other desired base.
Rewrite as an equation. log2(8) = x log 2 (8) = x. Rewrite log2 (8) = x log 2 (8) = x in exponential form using the definition of a logarithm. If x x and b b are positive real numbers and b b does not equal 1 1, then logb (x) = y log b (x) = y is equivalent to by = x b y = x. 2x = 8 2 x = 8.
log2 (8) Natural Language. Math Input. Extended Keyboard. Upload. Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history, geography, engineering, mathematics, linguistics, sports, finance, music….