3361ed…: “As of the comfortable function”

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Let $X(y) = 4 y^2 + 5$

Let $h$ and $k$ be real numbers.

Evaluate

\[ X(y+k) = \answer {4 (y+k)^2 + 5} \]

Evaluate

\[ X(y)+k = \answer {4 y^2 + 5 + k} \]

Evaluate

\[ X(k \, y + h) = \answer {4 (k y+h)^2 + 5} \]

Evaluate

\[ k \, X(y + h) = \answer {4 k (y+h)^2 + 5} \]

2025-05-17 18:48:10