9-2ˣ=2³⁻ˣ
9-2ˣ=2³*2⁻ˣ
9-2ˣ=8*1:2ˣ
9-t=8*1:t
Ответ: x1=0 ; x2=3
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9-2ˣ=2³⁻ˣ
9-2ˣ=2³*2⁻ˣ
9-2ˣ=8*1:2ˣ
9-t=8*1:t
Ответ: x1=0 ; x2=3