Which of the following is equivalent to the expression `x^4-x^3-x^2`?

Which of the following is equivalent to the expression (2x^(4)-5x^(4))^(2)?

3 ( 2x + 1 ) ( 4 x + 1 ) Which of the following is equivalent to the expression above?

(3x)/(2x-6)+(9)/(6-2x) Which of the following is equivalent to the expression above?

x^2-8x+5 Which of the following is equivalent to the expression above?

(1)/((1)/(x-4)-(1)/(x+6)) Which of the following is equivalent to the expression above?

xy((x)/(y)-y) Which of the following is equivalent to the expression above?

(x^(2)y-3y^(2)+5xy^(2))-(-x^(2)y+3xy^(2)-3y^(2)) Which of the following is equivalent to the expression above?

x^2+6x+4 Which of the following is equivalent to the expression above ?

(18x^4+ 27x^3- 36x^2)/ (9x^2) If x ne 0, which of the following is equivalent to the expression above ?

Which of the following is equivalent to the expressions (7x-4)/(x+9) ?