Which expression is equivalent to `(2x^2-4)-(-3x^2+2x-7)` ?

Which expression is equivalent to (9x^(2)y^(6))^(-(1)/(2)) ?

Which of the following expressions is equivalent to (x^2 - 2x -5)/(x-3) ?

Which of the following expressions is equivalent to (x/3 + 1/2)/(2/3 - 1/4) ?

Which of the following expressions is equivalent to 25 x ^(2) y ^(4)-1 ?

f(x)=x^(4)-25x^(2) k(x)=(1)/(x^(3)+3x^(2)-10x) Which of the following expressions is equivalent to f(x) . k(x),for xgt2 ?

The expression x^(2)-7x+12 is equivalent to :

If x is not equal to 2 or -2 . Which s equivalent to (3x^2 - 8x +4)/(x^2 - 4) ?

y = (3x ^(2) +7)/(x-3) Which of the following expressions is equivalent to y ?

Which of the following is equivalent to 2x(x^2-3x) ?

Which is equivalent to x^(-2/3) =4 ?