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Sladkaya [172]
3 years ago
12

8^x=2 8 to the power of x = 2. Find the value of x.

Mathematics
1 answer:
a_sh-v [17]3 years ago
5 0

Answer:

\huge{ \bold{  \boxed{ \sf{x =  \frac{1}{3} }}}}

☪ First , Let's know about Exponential Equation :

⤿ Let's take an equation : \sf{ {2}^{x}  = 8}.

In this equation , the variable ' x ' is the exponent of the base 2. Such an equation in which variable appears as an exponent of a base is known as exponential equation. The following axioms are useful while solving the exponential equations :

  • If \sf{ {a}^{x}  =  {a}^{b} } , then \sf{x = b}
  • If \sf{ {a}^{x}  = 1} , then \sf{ {a}^{x}  =  {a}^{0} } and x = 0

---------------------------------------------------------------

☯ Now , Let's Solve :

\underline{ \sf{Given \: Exponential \: Equation \: :  {8}^{x}  = 2}}

In this equation , the variable 'x' is the exponent of the base 8 .Write \sf{ {8}^{x} } in exponential form with the base of 2

↦ \sf{ {2}^{3x} = 2}

Write the number 2 in exponential form with the base of 2.

↦ \sf{ {2}^{3x}  =  {2}^{1}}

Since the bases are same , cut 2 on both sides and set the exponents equal.

↦ \sf{ { \cancel{2}} \: ^{3x}  =  { \cancel{2} } \: ^{1} }

↦ \sf{3x = 1}

Divide both sides by 3

↦ \sf{ \frac{3x}{3}  =  \frac{1}{3}}

↦ \boxed{   \bold{ \sf{x =  \frac{1}{3} }}}

And we're done!

Hope I helped!

Have a wonderful day! ツ

~TheAnimeGirl ♡

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

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Simplification

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Step-by-step explanation:

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