Question

(2l-3m+4n)whole square​

Answer 1

Answer:

4l²+9m²+16n²-12lm-24mn+16ln

Step-by-step explanation:

((2l+4n)-3m)²                            ______(rearranging the terms of the question)

(2l+4n)²+9m²-6m(2l+4n)                         _______(a-b)²=a²+b²-2ab

4l²+16n²+16ln+9m²-12ml-24mn              _______(a+b)²=a²+b²+2ab

4l²+9m²+16n²-12lm-24mn+16ln           __(writing the terms in the correct order)

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