Phân tích đa thức sau thành nhân tử: \({x^2} - 2x - xy + 2y\). 

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose a word that has different stress pattern:

   major              event                  decline               rename

• Choose a word that has different stress pattern:

   marry             program             spirit              perform

• Choose the word that has the underlined part pronounced differently from the rest:  

   teenager                 agree               organize               degrade

• Choose the best answer for the following sentence:

  The water in the lake must be ___________ before you use it.

   

• Choose the best answer for the following sentence:

  Most feminists object  to beauty contests in which contestants are in _____________ 

  swimsuits and ___________ high-heeled shoes.

   

• Choose the best answer for the following sentence:

  Beauty contests increased _________ most in _________ popularity in 1960.

    

• Choose the best answer for the following sentence:

  Beauty contests are very popular__________ teenagers in Venezuela.

   

• Choose the best answer for the following sentence:

  A beauty contest is a competition based largely ______________  the beauty of the

  contestants’ physical appearance.

   

• Choose the best answer for the following sentence:

  You have not participated __________ any of our competitions before, have you?

   

• Choose the best answer for the following sentence:

  _________ a contest requires a good preparation.