Đề kiểm tra chương 3 môn Đại số 10

SỞ GD-ĐT THANH HểA
TRƯỜNG THPT Lấ LAI
Họ và tờn:........................................................
Lớp:10C1..................................................................
A-Đề bài
Cõu I.(6 điểm): Giải cỏc phương trỡnh và hệ phương trỡnh sau:
 1. 
 2. .
 3. 
Cõu II.( 4 điểm)
Hai đội công nhân nếu làm chung thì hoàn thành một công việc mất 90 ngày. Nếu đội thứ nhất làm 20 ngày và đội thứ hai làm 15 ngày thì hoàn thành công việc. Hỏi nếu mỗi đội làm riêng thì mất bao nhiêu ngày mới hoàn thành công việc đó ?
Bài làm
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 SỞ GD-ĐT THANH HểA
TRƯỜNG THPT Lấ LAI
Họ vàTờn:......................................................................
Lớp: 10C2
Đề bài
Cõu I.(6 điểm
 Giải cỏc phương trỡnh và hệ phương trỡnh sau:
 1. 
 2. .
 3. 
Cõu II.( 4 điểm)
Tại hai ụ gần nhau của một thư viện, cú hai loại sỏch Toỏn và Văn. Biết số sỏch toỏn gấp 3 lần số sỏch văn. Nếu lấy số sỏch văn trừ đi 5 rồi bỡnh phương kết quả bằng số sỏch toỏn cộng thờm 3. Tớnh số sỏch mỗi loại?
Bài làm
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SỞ GD-ĐT THANH HểA
TRƯỜNG THPT Lấ LAI
Họ và Tờn:...........................................................................
Lớp:10C1
ĐỀ BÀI
Cõu I.(6 điểm)
 Giải cỏc phương trỡnh và hệ phương trỡnh sau:
 1. 
 2. .
 3. 
Cõu II.( 4 điểm): 
 Tại hai ụ gần nhau của một thư viện, cú hai loại sỏchVănvà Sử. Biết số sỏch văn gấp 3 lần số sỏch sử. Nếu lấy số sỏch sửtrừ đi 5 rồi bỡnh phương kết quả bằng số sỏch văn cộng thờm 3. Tớnh số sỏch mỗi loại?
BÀI LÀM
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