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The simplified form of the given expression is:

\[
12 - 13y^2
\]

Would you like more details on the steps? 

Here are 5 related questions for further practice:

1. How would the expression change if the coefficient of \( y^2 \) were doubled?
2. What is the result if you substitute \( y = 2 \) into the simplified expression?
3. How do you factor \( 12 - 13y^2 \)?
4. What happens if you add a linear term \( -7y \) to the simplified expression?
5. Can you solve the equation \( 12 - 13y^2 = 0 \)?

**Tip:** Always check your expressions for common factors before simplifying; this might make the simplification process easier!

(-2y^2 + y + 2) - (9y^2 + 4y - 8) + (-2y^2 + 3y + 2)

Learn how to simplify the polynomial expression (-2y^2 + y + 2) - (9y^2 + 4y - 8) + (-2y^2 + 3y + 2). This algebra problem involves combining like terms, including quadratic and linear terms, and constants. Suitable for students in Grades 8-10.

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