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Express the following fraction in simplest form, only using positive exponents.

(4j^(-9)w^(8))/((2w^(2))^(-4))
Answer:

Express the following fraction in simplest form, only using positive exponents.\newline4j9w8(2w2)4 \frac{4 j^{-9} w^{8}}{\left(2 w^{2}\right)^{-4}} \newlineAnswer:

Full solution

Q. Express the following fraction in simplest form, only using positive exponents.\newline4j9w8(2w2)4 \frac{4 j^{-9} w^{8}}{\left(2 w^{2}\right)^{-4}} \newlineAnswer:
  1. Simplify Denominator: We start by simplifying the denominator. The denominator is (2w2)4(2w^{2})^{-4}, which means we need to apply the negative exponent rule, which states that an=1ana^{-n} = \frac{1}{a^n}. We will apply this rule to both 22 and w2w^{2}.
  2. Apply Negative Exponent Rule: Applying the negative exponent rule to the denominator, we get:\newline(2w2)4=24×(w2)4(2w^{2})^{-4} = 2^{-4} \times (w^{2})^{-4}\newlineNow we will simplify each part separately.
  3. Simplify 242^{-4}: Simplifying 242^{-4}, we get:\newline24=124=1162^{-4} = \frac{1}{2^4} = \frac{1}{16}
  4. Simplify (w2)4(w^{2})^{-4}: Simplifying (w2)4(w^{2})^{-4}, we get:\newline(w2)4=1(w2)4=1w8(w^{2})^{-4} = \frac{1}{(w^{2})^4} = \frac{1}{w^{8}}
  5. Combine Denominator: Now we combine the simplified parts of the denominator: 24×(w2)4=116×1w8=116w82^{-4} \times (w^{2})^{-4} = \frac{1}{16} \times \frac{1}{w^{8}} = \frac{1}{16w^{8}}
  6. Divide by Reciprocal: Next, we will simplify the entire fraction by dividing the numerator by the simplified denominator: \newline(4j9w8)/(1/(16w8))(4j^{-9}w^{8}) / (1/(16w^{8}))
  7. Simplify Multiplication: When dividing by a fraction, it is equivalent to multiplying by its reciprocal. So we multiply the numerator by the reciprocal of the denominator: 4j9w8×(16w8)4j^{-9}w^{8} \times (16w^{8})
  8. Apply Exponent Rule: Now we simplify the multiplication: 4×16×j9×w8×w84 \times 16 \times j^{-9} \times w^{8} \times w^{8}
  9. Combine Constants and Variables: Multiplying the constants 44 and 1616, we get: 64j9w8w864 \cdot j^{-9} \cdot w^{8} \cdot w^{8}
  10. Convert Negative Exponent: Next, we apply the exponent rule for multiplication, which states that am×an=am+na^{m} \times a^{n} = a^{m+n} when multiplying like bases. We will apply this to w8×w8w^{8} \times w^{8}:\newlinew8×w8=w8+8=w16w^{8} \times w^{8} = w^{8+8} = w^{16}
  11. Final Simplification: Now we combine the constants and the variables with their exponents: 64j9w1664 \cdot j^{-9} \cdot w^{16}
  12. Final Simplification: Now we combine the constants and the variables with their exponents: 64×j9×w1664 \times j^{-9} \times w^{16} We want to express the fraction using only positive exponents. To do this, we apply the rule an=1ana^{-n} = \frac{1}{a^n} to j9j^{-9}: 64×(1j9)×w1664 \times \left(\frac{1}{j^9}\right) \times w^{16}
  13. Final Simplification: Now we combine the constants and the variables with their exponents: 64j9w1664 \cdot j^{-9} \cdot w^{16} We want to express the fraction using only positive exponents. To do this, we apply the rule an=1ana^{-n} = \frac{1}{a^n} to j9j^{-9}: 64(1j9)w1664 \cdot \left(\frac{1}{j^9}\right) \cdot w^{16} Finally, we write the expression in simplest form: 64w16j9\frac{64w^{16}}{j^9}

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