Cho phương trình \(2x^2-\left(m+1\right)\left|x\right|-m^2+7m-10=0\). Tìm m để phương trình đã cho:

1. Có đúng hai nghiệm

2. Có đúng 4 nghiệm phân biệt

Change clauses of reason to phrases:

1.the burglars were able to break into his house. He has forgot to lock one of the windows

2. The teacher is sick. We'll have no class tomorrow

3. He studies maths very hard. He wants to become a teacher of maths

4. Peter was worried. Mary was late

5. The T.V program was uninteresting. They went to bed early

6. I couldn't answer all the oral questions well. I felt too nervous