Using the identity (a+b)² = a² + 2 ab², find the
product (4m + 11n)².
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ɢɪᴠᴇɴ :- (4ᴍ + 11ɴ)²
ɪᴅᴇɴᴛɪᴛʏ : (ᴀ+ʙ)² = ᴀ²+2ᴀʙ +ʙ²
ʟᴇᴛ ᴀ = 4ᴍ , ʙ = 11ɴ
(4ᴍ+11ɴ)² = (4ᴍ)² + 2(4ᴍ)(11ɴ) + (11ɴ)²
= 16ᴍ² + 88ᴍɴ + 121ɴ²
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