Solve X2--169. (4 points)​

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

Step-by-step explanation:

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O A.
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O c.
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Help please and thank you

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