SOLUTION: John is 12 years older than Sam and the product of their ages is 189. How old is Sam? A. 11 years old B. 9 years old C. 21 years old D. 8 years old

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Question 1138429: John is 12 years older than Sam and the product of their ages is 189. How old is Sam?
A.
11 years old
B.
9 years old
C.
21 years old
D.
8 years old

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
S+12=J
S(S+12)=189
s^2+12S-189=0
(S+21)(S-9)=0
S=9 years
J=21 years