Question

What two numbers multiply to get 30 and add to get -11

Answer 1

-5 and -6

Explanation:

xy=30, x+y=-11

`x = - 11 - y`

`( - 11 - y)y = 30`

`- y ^(2) - 11y - 30 = 0`

`y {}^(2) + 11y + 30 = 0`

`(y + 5)(y + 6) = 0`

`y = - 5 \: or \: - 6`