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igor_vitrenko [27]
3 years ago
7

Please helpppp As soon as possible

Mathematics
1 answer:
Flura [38]3 years ago
8 0

Answer: 4 pairs

Step-by-step explanation:

121-16=105.   However, 121 can be made by squaring -11 or 11.  16 can be made by squaring 4 or -4.  Thus, the choices are 11,4 11,-4 -11,4 -11,-4

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