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What is the expression for 
f(x) when we rewrite 
(64^(x))/(4^(5x-1)) as 
4^(f(x)) ?

f(x)=

What is the expression for f(x) f(x) when we rewrite 64x45x1 \frac{64^{x}}{4^{5 x-1}} as 4f(x) 4^{f(x)} ?\newlinef(x)= f(x)=

Full solution

Q. What is the expression for f(x) f(x) when we rewrite 64x45x1 \frac{64^{x}}{4^{5 x-1}} as 4f(x) 4^{f(x)} ?\newlinef(x)= f(x)=
  1. Express as Power of 44: First, we need to express 6464 as a power of 44 because the denominator is already in base 44. We know that 6464 is 44 cubed, or 434^3. So we can rewrite 64x64^x as (43)x(4^3)^x.
  2. Apply Power of a Power Rule: Now we apply the power of a power rule, which states that a^b)^c = a^{b*c}\. So \(\(4^33)^x\ becomes (4\)^{33x}\.
  3. Rewrite with New Base Exponent: Next, we rewrite the original expression with the new base 44 exponent in the numerator: (43x)/(45x1)(4^{3x})/(4^{5x-1}).
  4. Use Quotient of Powers Rule: Now we use the quotient of powers rule, which states that am/an=amna^{m}/a^{n} = a^{m-n}. So we subtract the exponent in the denominator from the exponent in the numerator: 43x45x14^{3x} - 4^{5x-1} becomes 43x(5x1)4^{3x - (5x-1)}.
  5. Simplify Exponent: We simplify the exponent by distributing the negative sign inside the parentheses: 3x(5x1)3x - (5x-1) becomes 3x5x+13x - 5x + 1.
  6. Combine Like Terms: Now we combine like terms in the exponent: 3x5x+13x - 5x + 1 becomes 2x+1-2x + 1.
  7. Final Expression: Finally, we have the expression for f(x)f(x) as the exponent of 44 that we've simplified: f(x)=2x+1f(x) = -2x + 1.

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