A-level Maths · Exponentials and logarithms

Solve an exponential equation

Solve a^x = b, a^(kx + m) = b or a^(x + m) = c^x with logarithms, to 3 s.f.

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Question 1

Solve the equation 7x=1627^{x} = 162. Give your answer to 3 significant figures.

You can type 4.53, 3.2e-5, 3.2 × 10^-5 or 7/3.

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