To simplify the expression \( -(9x^2 + 2x - 3) \), you need to distribute the negative sign to each term inside the parentheses.

Here’s the step-by-step solution:

\[
-(9x^2) - (2x) - (-3)
\]

Now, apply the negative sign:

\[
-9x^2 - 2x + 3
\]

So, the simplified expression is:

\[
-9x^2 - 2x + 3
\]

Would you like more details or have any questions?

Here are 5 related questions:
1. How would you factor \( -9x^2 - 2x + 3 \)?
2. What is the result of multiplying \( -9x^2 - 2x + 3 \) by \( -1 \) again?
3. How do you solve the quadratic equation \( -9x^2 - 2x + 3 = 0 \)?
4. How would you graph the quadratic function \( y = -9x^2 - 2x + 3 \)?
5. What is the vertex of the parabola described by \( y = -9x^2 - 2x + 3 \)?

**Tip:** When distributing a negative sign, be careful to change the sign of each term inside the parentheses.

Learn how to simplify the expression -(9x^2 + 2x - 3) step-by-step with a detailed solution. This problem involves applying the distributive property to simplify polynomials, covering key algebraic concepts. Suitable for students in Grades 7-9.

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