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2la puterea x+1 + 2 la puterea x=24

Răspuns :

2ˣ⁺¹+2ˣ=24
2ˣ(2+1)=24
2ˣ3=2³3
x=3
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2ˣ⁺¹+2ˣ=24
2·2ˣ+2ˣ=24
2ˣ·(2+1)=24
2ˣ·3=24 ⇒ 2ˣ=8 ⇒2ˣ=2³ ⇒x=3