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1. b |
NONE |
find x-4 instead of x |
2. 1 | |
'' |
3. B |
Calculation |
a^2-b^2= (a+b)(a-b) ?? ?????? ??? ??????. ??????? ???????? ????, ??????? ????????. | |
4. C | |
5. C | |
6. D | |
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8. C | |
9. B | |
10. B | |
11. C | |
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Calculation |
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