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TrinhDoraemon
2 năm trước
câu 2 : cho đơn thức A=(-3x ∧ 3y ∧2) *( 1phan 3x ∧4 y ∧3 a) thu gọn đơn thức A b)tìm bậc ,hệ số cùa đơn thức A vừa thu gọn được câu 3 : cho haI đa thức P(x)=4x ∧3 -6x +2x ∧2+3 Q(x)=5x -2x ∧2+1-4x ∧3 a. sắp sếp các đa thức trên theo luy thừa giảm dần của biến b. Tính P(x)+ Q(x) c. Tòm nhiệm của G(x)= P(x) +Q(x) vote 5******
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