(2m - 3n)(2m+3n) + (2m + 3n)^2
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Answered by
3
Answer:
8m^2
Step-by-step explanation:
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Answered by
9
Answer:
4m²-6mn+4m²+6mn
6mn-9n²+6mn-9n²
3mn+3mn
9m²n²
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