kaylaamberd
11.10.2020 •
Mathematics
4a^2-2b^2+40 a=2. b=7
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Ответ:
-92
Step-by-step explanation:
4a^2-2b^2+40 a=2. b=7
Fill in variables
4(2)^2-2(7)^2+40 a=2. b=7
8^2 - 14^2 + 40
64 - 196 +40 = -92
Ответ:
9
Step-by-step explanation: