1.

16 l ^ { 2 } + 2 \overline { 4 } m + 9 m ^ { 2 }

Answer»

16l² + 24 lm + 9m²16l² +12 lm + 12 lm + 9m²4l(4l + 3m) + 3m (4l +3m)(4l+3m)²



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