Factorise `y^2-5y+6` by using the Factor Theorem.

Explanation

To factorize the polynomial \( y^2 - 5y + 6 \) using the Factor Theorem, we can follow these steps:

### Step 1: Identify the Polynomial
We start with the polynomial:
\[ y^2 - 5y + 6 \]
Here, the coefficient of \( y^2 \) is 1, which is suitable for applying the Factor Theorem.
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