Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

What is the expression for 
f(x) when we rewrite 
3^(5x+3)*27^(x) as 
3^(f(x)) ?

f(x)=

What is the expression for f(x) f(x) when we rewrite 35x+327x 3^{5 x+3} \cdot 27^{x} as 3f(x) 3^{f(x)} ?\newlinef(x)= f(x)=

Full solution

Q. What is the expression for f(x) f(x) when we rewrite 35x+327x 3^{5 x+3} \cdot 27^{x} as 3f(x) 3^{f(x)} ?\newlinef(x)= f(x)=
  1. Rewrite 2727 as power of 33: We need to express the product of two powers of 33 as a single power of 33. The given expression is 35x+3×27x3^{5x+3} \times 27^{x}. We know that 2727 is a power of 33, specifically 27=3327 = 3^3. So, we can rewrite 27x27^{x} as (33)x(3^3)^{x}.
  2. Apply power of a power rule: Now we apply the power of a power rule, which states that (ab)c=a(bc)(a^b)^c = a^{(b*c)}. So, (33)x(3^3)^{x} becomes 3(3x)3^{(3*x)} or 33x3^{3x}.
  3. Multiply expressions with same base: Next, we multiply the two expressions with the same base by adding their exponents. The expression becomes 35x+3×33x3^{5x+3} \times 3^{3x}. According to the laws of exponents, am×an=am+na^{m} \times a^{n} = a^{m+n}. So, we add the exponents 5x+35x+3 and 3x3x together.
  4. Combine like terms: Adding the exponents gives us 35x+3+3x3^{5x+3+3x}. We combine like terms to simplify the exponent: 5x+3x=8x5x + 3x = 8x and 33 remains unchanged.
  5. Simplify the exponent: The simplified exponent is 8x+38x + 3. Therefore, the expression 35x+3×27x3^{5x+3} \times 27^{x} can be rewritten as 38x+33^{8x+3}.
  6. Set f(x)f(x) equal to exponent: Since we want to express this as 3f(x)3^{f(x)}, we set f(x)f(x) equal to the exponent we found. So, f(x)=8x+3f(x) = 8x + 3.

More problems from Evaluate exponential functions