Question

Which is equivalent to 4x/(x-7) - (x+7)/x

2x^2 + 49/x(x-7)
3x^2 + 49/x(x-7)
3(x+7)/x(x-7)
3(x-7)/x(x-7)

Answer 1

3(x + 7) / x(x - 7)