Question

What two numbers add up to 16 and multiply to -36

Answer 1

-2 and 18

Explanation:

a + b = 16

ab = -36

a = (16-b)

b(16-b) = -36

16b - b² = -36

-b² + 16b + 36 = 0

b² - 16b - 36 = 0

(b+18)(b-2) = 0