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DanielleElmas [232]
4 years ago
8

Someone help me please I don't know how to do this ! :(

Mathematics
1 answer:
Ivanshal [37]4 years ago
5 0
4^{x+1}=21\\
x+1=\log_421\\
x=\log_421-1\\
x=\log_421-\log_44\\
x=\log_4\dfrac{21}{4}\\
x=\dfrac{\ln \dfrac{21}{4}}{\ln 4}\approx 1.1962
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