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Solve for the exact value of 
x.

log_(2)(8x)-2log_(2)(6)=3
Answer:

Solve for the exact value of x x .\newlinelog2(8x)2log2(6)=3 \log _{2}(8 x)-2 \log _{2}(6)=3 \newlineAnswer:

Full solution

Q. Solve for the exact value of x x .\newlinelog2(8x)2log2(6)=3 \log _{2}(8 x)-2 \log _{2}(6)=3 \newlineAnswer:
  1. Apply power rule of logarithms: Apply the power rule of logarithms to the term 2log2(6)2\log_2(6). The power rule states that alogb(c)=logb(ca)a\log_b(c) = \log_b(c^a). Therefore, we can rewrite 2log2(6)2\log_2(6) as log2(62)\log_2(6^2). log2(8x)log2(62)=3\log_2(8x) - \log_2(6^2) = 3
  2. Simplify term 626^2: Simplify the term 626^2.\newline626^2 equals 3636, so the equation becomes:\newlinelog2(8x)log2(36)=3log_2(8x) - log_2(36) = 3
  3. Apply quotient rule of logarithms: Apply the quotient rule of logarithms to combine the logarithmic terms.\newlineThe quotient rule states that logb(a)logb(c)=logb(ac)\log_b(a) - \log_b(c) = \log_b\left(\frac{a}{c}\right). Therefore, we can combine the logarithmic terms:\newlinelog2(8x36)=3\log_2\left(\frac{8x}{36}\right) = 3
  4. Convert to exponential equation: Convert the logarithmic equation to an exponential equation.\newlineUsing the definition of a logarithm, we can rewrite the equation as:\newline23=8x362^3 = \frac{8x}{36}
  5. Calculate 232^3: Calculate 232^3.\newline232^3 equals 88, so the equation becomes:\newline8=8x368 = \frac{8x}{36}
  6. Multiply by 3636: Multiply both sides of the equation by 3636 to solve for xx.36×8=8x36 \times 8 = 8x288=8x288 = 8x
  7. Divide by 88: Divide both sides of the equation by 88 to isolate xx.2888=x\frac{288}{8} = x36=x36 = x

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