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determina x stiind ca 7la puterea x+7 la putera x+2 =2450


Răspuns :

7ˣ+7ˣ⁺²=2450
7ˣ+7ˣ * 7²=2450
7ˣ(1+7²)=2450
7ˣ *50=2450
7ˣ=49
7ˣ=7²⇒x=2