M=x+3(/x-90 +3/(√x+3)-1/(√x-3). Rút gọn MA=√x/(√x+3) +(2√x-1)/(√x-3) -(2x-√x-3)/(x-9)

M=x+3(/x-90 +3/(√x+3)-1/(√x-3)
rút gọn M
A=√x/(√x+3) +(2√x-1)/(√x-3) -(2x-√x-3)/(x-9)
Rút Gọn A