Algebra-1

To factor the quadratic expression -x² - 6x - 9, we can follow these steps:

Start with the quadratic expression: -x² - 6x - 9.

To factor out -1, we can rewrite the expression as: -1(x² + 6x + 9).

Now, let's factor the quadratic expression inside the parentheses: x² + 6x + 9.

To factor this quadratic expression, we need to find two numbers that multiply to give 9 and add up to 6 (t...