Toán Lớp 8: Tính
-3x+7x-9+(x-1)(x+2)
x(x-5)-3x(x+1)
4x(x^2-x+1)-(x-1)(x^2-x)
-5x(x-5)+(x-3)(x^2-7)
ai làm nhanh em cho trlhn ạ!
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Toán Lớp 8: Tính
-3x+7x-9+(x-1)(x+2)
x(x-5)-3x(x+1)
4x(x^2-x+1)-(x-1)(x^2-x)
-5x(x-5)+(x-3)(x^2-7)
ai làm nhanh em cho trlhn ạ!
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