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Solve X2--169. (4 points)​
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1 vote
Solve X2--169. (4 points)​

User Rikky
by
7.2k points

1 Answer

3 votes

Answer:

Replace all occurrences of

−

−

with a single

+

. Two consecutive minus signs have the same mathematical meaning as a single plus sign because

−

1

⋅

−

1

=

1

x

2

+

169

Explanation:

User Shamoon
by
7.2k points
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