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zavuch27 [327]
3 years ago
8

What is the solution of 7^3x = 400?

Mathematics
2 answers:
Mazyrski [523]3 years ago
7 0
X= 400/343 simplify each side of the equation and isolate the variable 
OlgaM077 [116]3 years ago
6 0
Hi,
7^{3x}=400\\\\

3x*ln(7)=ln(400)\\\\

x= \dfrac{ln(400)}{3*ln(7)} \\\\

x =1,026334566...
\\x\approx 1.03



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