Find all x-intercepts of the function.
-$$f ( x ) = x ^ { - 2 } + 4 x ^ { - 1 } + 3$$
A) $$\left( \frac { 1 } { 3 } , 0 \right) , ( 1,0 )$$
B)(1, 0), (3, 0)
C)(-1, 0), (-3, 0)
D) $$\left( - \frac { 1 } { 3 } , 0 \right) , ( - 1,0 )$$

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The Answer of Find all x-intercepts of the function.
-$$f ( x ) = x ^ { - 2 } + 4 x ^ { - 1 } + 3$$
A) $$\left( \frac { 1 } { 3 } , 0 \right) , ( 1,0 )$$
B)(1, 0), (3, 0)
C)(-1, 0), (-3, 0)
D) $$\left( - \frac { 1 } { 3 } , 0 \right) , ( - 1,0 )$$

Find All X-Intercepts of the Function f(x)=x−2+4x−1+3f ( x ) = x ^ { - 2 } + 4 x ^ { - 1 } + 3f(x)=x−2+4x−1+3

Find All X-Intercepts of the Function $f ( x ) = x ^ { - 2 } + 4 x ^ { - 1 } + 3$