$x=3$ is a solution of the equation $3x^{2} + (k-1)x + 9 = 0$ if $k$ has the value:
- A$13$
- B$-13$
- C$11$
- D$-11$
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The roots of the equation $3^{2x} - 10 \cdot 3^x + 9 = 0$ are
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