(4a+3b)2 - (4a-3b)2 + 48ab
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Yogita Ingle 4 years, 1 month ago
(4a+3b)2 - (4a-3b)2 + 48ab
= (4a)2 + (3b)2 + 2(4a)(3b) + (4a)2 + (3b)2 - 2(4a)(3b)+ 48ab
= 16a2 + 9b2 + 24ab + 16a2 + 9b2 - 24ab + 48ab
= 16a2 + 16a2 + 9b2 + 9b2 + 48ab
= 32a2 + 18b2 + 48 ab
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