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

(20w^(7))/(-4(w^(2)b)^(4))
Answer:

Express the following fraction in simplest form, only using positive exponents.\newline20w74(w2b)4 \frac{20 w^{7}}{-4\left(w^{2} b\right)^{4}} \newlineAnswer:

Full solution

Q. Express the following fraction in simplest form, only using positive exponents.\newline20w74(w2b)4 \frac{20 w^{7}}{-4\left(w^{2} b\right)^{4}} \newlineAnswer:
  1. Simplify Denominator: First, we need to simplify the denominator. The expression (4(w2b)4)(-4(w^{2}b)^{4}) involves a power of a product, so we apply the power to both the coefficient and the variables inside the parentheses.\newline(\(-4(w^{22}b)^{44}) = (4-4)^{44} \times (w^{22})^{44} \times b^{44}
  2. Calculate Powers: Now we calculate the powers of each term in the denominator.\newline(4)4=256(-4)^4 = 256 because (4)(-4) multiplied by itself 44 times is 256256.\newline(w2)4=w24=w8(w^{2})^4 = w^{2*4} = w^8 because when you raise a power to a power, you multiply the exponents.\newlineb4b^4 remains the same.\newlineSo the denominator becomes 256×w8×b4256 \times w^8 \times b^4.
  3. Divide Numerator by Denominator: Next, we divide the numerator by the denominator. We have 20w720w^7 in the numerator and 256w8b4256w^8b^4 in the denominator.\newline(20w7)/(256w8b4)(20w^7) / (256w^8b^4)\newlineWe can simplify this by dividing the coefficients and subtracting the exponents of like bases.\newline20/25620 / 256 reduces to 5/645 / 64 after dividing both by 44.\newlinew7/w8w^7 / w^8 reduces to 1/w1 / w because w7w^7 divided by w8w^8 is 256w8b4256w^8b^400.\newlineThe 256w8b4256w^8b^411 term only appears in the denominator, so it remains as 256w8b4256w^8b^422.
  4. Put Together Simplified Expression: Putting it all together, we get the simplified expression:\newline(564)×(1w)×(1b4)(\frac{5}{64}) \times (\frac{1}{w}) \times (\frac{1}{b^4})\newlineThis simplifies to:\newline564w×b4\frac{5}{64w \times b^4}

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