Mathematics
Junior High
Resolved

答えがありません。
あっているか教えて欲しいです
間違ってたら解説していただけると助かります

(1) 25x+30x+9 (2) α-8ab+166° (5x+3)? (a-4b)2 (3) 9x°-12.xy+ 4y (4) 36a°- 496° 2 (3X-2y) (6a-76)(6a+7b)

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