Question

find (3m+4n)whole square​

Answer 1

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so the answer is 9m2+16n2+24mn

Answer 2

Answer:

9m² + 24mn + 16n²

Step-by-step explanation:

Given :   (3m + 4n)²

• Identity :  (a + b)² = a² + 2ab + b²

             where,  a = 3m,  b = 4n

➾ (3m)² + 2(3m)(4n) + (4n)²

➾ 9m² + 24mn + 16n²