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havy201999999999
2 năm trước
Cho 2 đa thức: A(x)=4x^4-3^2 +6x^3-7x-2 B(x)=3x^2+5x-8-6x^3-4x^4 a)Hãy sắp xếp các đa thức A(x)vàB(x) theo luỹ thừa giảm dần b)Tính A(x)-B(x) và A(x)+B(x)
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