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Multiply. Write your answer in simplest form.\newline4k35k×(k21)\frac{4k - 3}{5k} \times (k^2 - 1)

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Q. Multiply. Write your answer in simplest form.\newline4k35k×(k21)\frac{4k - 3}{5k} \times (k^2 - 1)
  1. Write Problem: Write down the given problem.\newlineWe are given the expression (4k35k)×(k21)(\frac{4k - 3}{5k}) \times (k^2 - 1).
  2. Factor Second Expression: Factor the second expression if possible.\newlineThe second expression (k21)(k^2 - 1) is a difference of squares and can be factored into (k+1)(k1)(k + 1)(k - 1).
  3. Rewrite with Factored Form: Rewrite the expression with the factored form.\newlineThe expression now looks like (4k3)/(5k)×(k+1)(k1)(4k - 3)/(5k) \times (k + 1)(k - 1).
  4. Multiply Numerators and Denominators: Multiply the numerators and denominators.\newlineWhen multiplying fractions, we multiply the numerators together and the denominators together. This gives us (4k3)×(k+1)(k1)/(5k)(4k - 3) \times (k + 1)(k - 1) / (5k).
  5. Expand Numerator: Expand the numerator.\newlineWe need to distribute (4k3)(4k - 3) across (k+1)(k1)(k + 1)(k - 1). First, multiply (k+1)(k1)(k + 1)(k - 1) to get k21k^2 - 1. Then distribute: 4k(k21)3(k21)4k(k^2 - 1) - 3(k^2 - 1).
  6. Perform Distribution: Perform the distribution.\newlineCalculate 4k(k21)4k(k^2 - 1) which is 4k34k4k^3 - 4k and 3(k21)-3(k^2 - 1) which is 3k2+3-3k^2 + 3. The expression becomes 4k34k3k2+34k^3 - 4k - 3k^2 + 3.
  7. Combine Like Terms: Combine like terms in the numerator.\newlineThere are no like terms to combine in 4k34k3k2+34k^3 - 4k - 3k^2 + 3. So the numerator remains the same.
  8. Write Final Expression: Write the final expression.\newlineThe final expression is (4k33k24k+3)/(5k)(4k^3 - 3k^2 - 4k + 3) / (5k).

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