(2a+3b)^2+(2a-3b)^2=8a^2+18b^2
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Question- (2a+3b)^2+(2a-3b)^2=8a^2+18b^2
Answer- 2a^2 + 3b^2 + 2a^2 - 3b^2 = 8a^2 + 18b^2
2a^2 + 2a^2 + 3b^2 - 3b^2 = 8a^2 + 18b^2
4a^2 = 8a^2 + 18b^2
-4a^2 = 18b^2
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