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Which expression is equivalent to 94×449^4 \times 4^4?\newlineChoices:\newline(A) 36836^8\newline(B) 36436^4\newline(C) 1/3641/36^4\newline(D) 361636^{16}

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Q. Which expression is equivalent to 94×449^4 \times 4^4?\newlineChoices:\newline(A) 36836^8\newline(B) 36436^4\newline(C) 1/3641/36^4\newline(D) 361636^{16}
  1. Identify Bases and Exponents: Identify the base numbers and their exponents in the given expression.\newlineThe given expression is 94×449^4 \times 4^4. Here, 99 and 44 are the bases, and both are raised to the power of 44.
  2. Factor Bases to Common Base: Factor the bases to express them as powers of a common base if possible.\newlineThe number 99 can be written as 323^2, and the number 44 can be written as 222^2. Therefore, we can rewrite the expression as (32)4×(22)4(3^2)^4 \times (2^2)^4.
  3. Apply Power of Power Rule: Apply the power of a power rule, which states that a^b)^c = a^{b*c}\. Using this rule, we get \(\(3^22)^44 * (22^22)^44 = 33^{22*44} * 22^{22*44} = 33^88 * 22^88\
  4. Multiply Bases with Exponents: Multiply the expressions with the same exponents by combining the bases.\newlineSince both 383^8 and 282^8 have the same exponent, we can multiply the bases first and then apply the exponent. This gives us (3×2)8=68(3 \times 2)^8 = 6^8.
  5. Factor 66 and Simplify: Recognize that 686^8 is not one of the answer choices, but 66 can be factored further.\newlineThe number 66 can be written as 2×32 \times 3, and since we already have 282^8 and 383^8 from the previous step, we can combine them to get (2×3)8=68(2 \times 3)^8 = 6^8.
  6. Express in Terms of Base44: Realize that 686^8 is not in the simplest form for comparison with the answer choices.\newlineWe need to express 686^8 in terms of a base raised to the power of 44 to match the answer choices. Since 66 is 2×32\times3, we can write 686^8 as (24×34)2(2^4 \times 3^4)^2.
  7. Apply Distributive Property: Apply the distributive property of exponents over multiplication.\newlineWe have (24×34)2(2^4 \times 3^4)^2, which can be written as (24)2×(34)2(2^4)^2 \times (3^4)^2. This simplifies to 28×382^8 \times 3^8, which is the same as 686^8 from the previous steps.
  8. Recognize Equivalent Expression: Recognize that 28×382^8 \times 3^8 is equivalent to (2×3)8(2\times3)^8, which is 686^8. We have already established that 686^8 is the simplified form of the given expression. Now we need to express it in terms of a base raised to the power of 44 to match the answer choices.
  9. Express in Terms of Base44: Express 686^8 in terms of a base raised to the power of 44.\newlineSince 68=(62)46^8 = (6^2)^4, and 626^2 is 3636, we can write 686^8 as 36436^4.
  10. Match to Answer Choices: Match the simplified expression to the answer choices.\newlineThe expression 36436^4 corresponds to choice (B) 36436^4.

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