Find all x-intercepts of the function.
-$$f ( x ) = 7 x ^ { - 2 } + 8 x ^ { - 1 } + 1$$
A) $$\left( - \frac { 1 } { 7 } , 0 \right) , ( - 1,0 )$$
B) $$\left( \frac { 1 } { 7 } , 0 \right) , ( 1,0 )$$
C)(1, 0), (7, 0)
D)(-1, 0), (-7, 0)

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The Answer of Find all x-intercepts of the function.
-$$f ( x ) = 7 x ^ { - 2 } + 8 x ^ { - 1 } + 1$$
A) $$\left( - \frac { 1 } { 7 } , 0 \right) , ( - 1,0 )$$
B) $$\left( \frac { 1 } { 7 } , 0 \right) , ( 1,0 )$$
C)(1, 0), (7, 0)
D)(-1, 0), (-7, 0)

Find All X-Intercepts of the Function f(x)=7x−2+8x−1+1f ( x ) = 7 x ^ { - 2 } + 8 x ^ { - 1 } + 1f(x)=7x−2+8x−1+1

Find All X-Intercepts of the Function $f ( x ) = 7 x ^ { - 2 } + 8 x ^ { - 1 } + 1$