20*x*294*x/2+1
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2 câu trả lời 104
1 năm trước
bài toán giải:
20x.294x2+1
1. rút gọn
20⋅2942+120𝑥⋅294𝑥2+1
5880xx2+1
5880xx2+1
2. Kết hợp các phép tính lũy thừa
5880xx2+1
5880x22+1
5880x22+1
3. Khử số hạng ở cả tử số và mẫu số
5880x22+1
2940x2
Vậy đáp án là: 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