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Julia1785
@Julia1785
July 2022
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Пожалуйста решите уравнение 4^x + 3 * 2^x - 4 = 0
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friendyou20
4ˣ+3*2ˣ-4=0
2²ˣ+3*2ˣ-4=0
2ˣ=t>0
t²+3t-4=0 D=25
t₁=1 ⇒ 2ˣ=1 2ˣ=2⁰ x=0
t₂=-4 t₂∉
Ответ: х=0.
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sangers1959
Verified answer
(2^x)^2=4^x
Все легко решается.
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Thanks 0
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Answers & Comments
2²ˣ+3*2ˣ-4=0
2ˣ=t>0
t²+3t-4=0 D=25
t₁=1 ⇒ 2ˣ=1 2ˣ=2⁰ x=0
t₂=-4 t₂∉
Ответ: х=0.
Verified answer
(2^x)^2=4^xВсе легко решается.