SOLUTION: can u help me with: one number is 10 more than another number. If the product is -21, find both numbers

Algebra ->  Expressions -> SOLUTION: can u help me with: one number is 10 more than another number. If the product is -21, find both numbers      Log On


   

Question 873388: can u help me with: one number is 10 more than another number. If the product is -21, find both numbers
Found 2 solutions by ewatrrr, richwmiller:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
n(n+10) = -21
n^2 + 10n + 21 = 0
(n + 7)(n+3) = 0, n = -3, -7

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
-3 and +7 or
-7 and +3