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What is g(k+1)=x^2-4x

User IlBeldus
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1 Answer

4 votes

Answer:

g(k + 1) = k² - 2k - 3

Explanation:

Step 1: Plug in (k + 1) in for x

g(k + 1) = (k + 1)² - 4(k + 1)

Step 2: FOIL

g(k + 1) = k² + 2k + 1 - 4(k + 1)

Step 3: Distribute

g(k + 1) = k² + 2k + 1 - 4k - 4

Step 4: Combine like terms

g(k + 1) = k² - 2k - 3

User Svenningsson
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