badboyballen badboyballen
  • 06-11-2020
  • Mathematics
contestada

If 32^2C = 8^C+7, what is the value of c?
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If 322C 8C7 what is the value of c 1 2 3 5 class=

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LammettHash
LammettHash LammettHash
  • 06-11-2020

32 = 2⁵ and 8 = 2³, so you can rewrite the equation as

[tex]32^{2c}=8^{c+7}\implies(2^5)^{2c}=(2^3)^{c+7}\implies 2^{10c}=2^{3c+21}[/tex]

The bases of both sides are equal, so the exponents must be too. Solve for c :

10c = 3c + 21

7c = 21

c = 3

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