Mathematics
Junior High

計算の仕方を教えてくれるとありがたいです! 
ちなみに11です!

(1: 次の計算をしなさい。 (3) (x-4y)(x--9y) (5) (3.x-2)? 2 1 x+2 (9 (x-7y)(x+7y)

Answers

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