Rút gọn \(P = \left( {{x^2} - 4} \right)\left( {\dfrac{1}{{x + 2}} + \dfrac{1}{{x - 2}} + 1} \right)\)
A.\(\dfrac{{{x^2} + 2x - 4}}{{{x^2} - 4}}\)
B.\(\dfrac{{{x^2} + 2}}{{{x^2} - 4}}\)
C.\({x^2} + 2x - 4\)
D.\(\dfrac{{ - 4}}{{{x^2} - 4}}\)
A.\(\dfrac{{{x^2} + 2x - 4}}{{{x^2} - 4}}\)
B.\(\dfrac{{{x^2} + 2}}{{{x^2} - 4}}\)
C.\({x^2} + 2x - 4\)
D.\(\dfrac{{ - 4}}{{{x^2} - 4}}\)
Loga
Hóa Học lớp 12
