Algebra-1

First, factor the quadratic trinomial -x² - 3x + 10.

We can rewrite it as -(x² + 3x - 10).

Now factor x² + 3x - 10. We need to find two numbers that multiply to -10 and add up to 3.

The factors of 10 are: 1, 2, 5 and 10.

We need to find two numbers whose sum is 3. The numbers are -2 and 5 beca...