Question

How do I solve this using long division?

Answer 1

Answer:

You can't.

Step-by-step explanation:

When you divide it you get x+5.

Answer 2

Answer:

(x - 2)(x + 5)

Step-by-step explanation:

                     

                    x   +5

          ----------------------

  x - 2 | x² + 3x - 10

             x² - 2x   ↓

          ------------------------

                   5x    - 10

                   5x    - 10

           ------------------------

                              0 ← remainder = 0

quotient = x + 5

Then x² + 3x - 10 = (x - 2)(x + 5 )