What two numbers multiply to -96 and add to -4

Question

asked May 16, 2022 57.2k views

2 Answers

Amnesyc · Answer 1 · 2022-05-16T16:28:02+0000

Answer:

8 and -12

Explanation:

xy = -96

x+y = -4

x = -y-4 which is the same as

substitution method:

y(-y-4) = -96

-y² - 4y + 96 = 0

-(y² + 4y - 96) = 0

(y + 12)(y - 8) = 0

y = -12

y = 8