32.3k views
3 votes
If 9 : x = x:4, then x =

User Kerrine
by
6.2k points

1 Answer

4 votes

Answer:

x = ±6

Explanation:

9 : x = x : 4

Cross multiply

36 = x²

Take the square root of both sidesw

x = ±6

User Guy Carmin
by
6.8k points
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