3²- 3²⁻ˣ -8=0
9- 3²⁻ˣ -8=0
1 - 3²⁻ˣ =0
1= 3²⁻ˣ
3⁰=3²⁻ˣ
2-х=0
х=2
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3²- 3²⁻ˣ -8=0
9- 3²⁻ˣ -8=0
1 - 3²⁻ˣ =0
1= 3²⁻ˣ
3⁰=3²⁻ˣ
2-х=0
х=2