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11Alexandr11 [23.1K]
3 years ago
13

Pls help fast pls pls pls pls pls

Mathematics
1 answer:
krok68 [10]3 years ago
3 0

Answer:

{3a}^{2} -  {7b}^{2}  +  {2a}^{2}  +  {b}^{2}

Step-by-step explanation:

  1. Since 2 opposite add up to 0,remove them from the expression (+4ab, - 4ab)

2. Calculate the product

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~

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