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simplify b^4 + (a^2b - 4b)^2 + ((a+2)(a-2))^2 \leq 196 + a^4 + b^4 - 28a^2 - 28b^2 + 2a^2b^2
simplify b^4 + (a^2b - 4b)^2 + ((a+2)(a-2))^2 \leq 196 + a^4 + b^4 - 28a^2 - 28b^2 + 2a^2b^2
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