mirandanhewitt mirandanhewitt
  • 08-05-2015
  • Mathematics
Answered

What times what equals -18 but adds up to -7?



Answer :

RedRicin
RedRicin RedRicin
  • 08-05-2015
Think of numbers that multiply to get 18 and see if they can make 7.
18 and 1 isn't going to make 7.
9 and 2 can, though!

One will need to be negative so that it multiplies to MINUS 18.
-9 + 2 = -7, so there's our answer.
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