Question

What adds to negative 13 and multiplies to 42

Answer 1

negative 7 and negative 6

Answer 2

factor 42 into factor pairs and add them and see which ones add to -13
remember both must be negative
-1-42=-43 nope
-2-21=-23 nope
-3-14=-17 nope
-6-7=-13 yep

the numbers are -7 and -6