What's 2 numbers that multiply to make - 21 but add up to - 4

2 numbers that multiply to make - 21 = 3 x (-7)

2 numbers that add up to - 4 = 3 - 7

Step-by-step explanation:

2 numbers that multiply to make - 21 = 3 x (-7) = - 21

2 numbers that add up to - 4 = 3 - 7 = - 4