AM-1520

Exponential and logarithmic equations

A Math · Secondary 4 · Easy · Exponential and logarithmic equations

1. $7^{n-1}(7^2-3+2)$
2. $7^{n-1}(7^2-3\cdot7+2)$
3. $7^n(7-3+2)$
4. $7^{n+1}(1-3+2)$

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