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Find (f•g) (k) equations in red letters

Find (f•g) (k) equations in red letters-example-1
User Ali Nahid
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1 Answer

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The answer is (f . g)(x) = - (34k + 17k⁷ + 17k⁵ + 40k³ + 20k² + 60).

Remember that :

(f . g)(x) = f(x) × g(x)

Hence :

  • (f . g)(x) = (2k³ + k² + 3)(-17k⁵ - 20)
  • (f . g)(x) = -34k⁸ - 17k⁷ - 17k⁵ - 40k³ - 20k² - 60
  • (f . g)(x) = - (34k + 17k⁷ + 17k⁵ + 40k³ + 20k² + 60)
User Dmaclach
by
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