0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000x1+1000000000000000000000000000000000000-70000009987654+123456789x0=...............................................................
De lam ^-^!!!!!!!!!!
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Lớp 2 có bài toán này á!!!!!
Haizz nhà trường làm khó các em học sinh rồi :(