Объяснение:
-b^2+7
b= - 3
-(-3)^2+7= - 9+7= - 2
-a^2+3
a= - 5
-(-5)^2+3= - 25+3= - 22
1.
2.
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Объяснение:
-b^2+7
b= - 3
-(-3)^2+7= - 9+7= - 2
-a^2+3
a= - 5
-(-5)^2+3= - 25+3= - 22
1.
2.