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thanhtoanhcm1303
2 năm trước
Câu 1: Giá trị của đa thức -4xy-3x-5 + 3x+6xy-1 tại x=-2 và y=1 là? Câu 2: Đa thức 5y^{4}+6x+7 -5y^{4}+5x-2 sau khi thu gọn có bậc là? Câu 3: Thu gọn và tìm bậc của đa thức sau: -3x^{2}y-7y^{2}+7 -y^{2}-8x^{2}y-8 Cây 4: Đa thức 4x^{6}-3y^{5}-2x^{4}y^{4} có bậc là? Câu 5: Đa thức -2x^{2}-6y-5 + 7x^{2}-9y-4 được thu gọn thành? AI NHANH MK VOTE % SAO NHÉ :<<<
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