B/ 35X(1,5ĐIỂM) C/ X2 – 160,5Đ A/...

bài 1 - DE THI HKI TOAN 8 CO DAP AN VA MA TRAN
Toán DE THI HKI TOAN 8 CO DAP AN VA MA TRAN
Bài 1 b/

3

5x(1,5điểm) c/ x

2

– 160,5đ a/ 5(2x + 3y) 0,5đ