Math, asked by sreenanda85, 4 months ago

simplify. 1.(7m-5n)² ± (7m+5n)² 2.(ab+bc)²-2ab²c

answer please
I will mark you as brainlest

Answers

Answered by Seonghwasmirk

1

Answer:

1] 98m² + 50n²

2] a²b² + b²c²

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