Roots by factoring

Exercise and reference answers

Questions

1. Answer

   3

   Question

   x² - 5x + 6 = 0. What is the larger root?

2. Answer

   4

   Question

   x² - 16 = 0. What is the positive root?

3. Answer

   2

   Question

   x² + 3x - 10 = 0. What is the positive root?

Instructions

Factor in your head, key the root in, then press enter.

Explanation