Chào mừng quý vị đến với .
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DE KIEM TRA DAI SO (BAI SO 1)
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(Tài liệu chưa được thẩm định)
Nguồn:
Người gửi: Phan Thế Cường
Ngày gửi: 15h:27' 13-01-2010
Dung lượng: 51.5 KB
Số lượt tải: 13
Nguồn:
Người gửi: Phan Thế Cường
Ngày gửi: 15h:27' 13-01-2010
Dung lượng: 51.5 KB
Số lượt tải: 13
Số lượt thích:
0 người
KIỂM TRA 1T (Số 1)
Môn: Đại Số 8
Tiết PPCT: 21
ĐỀ 2
Câu 1: Tính nhân a) -3xy2.2x2
b) x(2x2 - y)
c) (x-1)(x2 - 2x + 1)
Câu 2: Phân tích các đa thức sau thành nhân tử
a) y3 + 4y2 - y b) 2x3- 2x c) x2 + 16 - 8x +2x - 8
Câu 3: a) Thực hiện phép chia sau: ( x3 - x2 - 7x +3) : ( x - 3)
b) Chứng minh rằng: ( 5n + 2)2 - 4 chia hết cho 5 với mọi số nguyên n
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