Find all real zeros (estimate the irrational zeros to the nearest hundredth).
-$f ( x ) = x ^ { 4 } + 7 x ^ { 3 } - 7 x ^ { 2 } - 63 x - 18$
A)0.30, -6.70
B)3, -3, -0.30, -6.70
C)3, -3, 0.30, -6.70
D)9, -9, -0.30, -6.70

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The Answer of Find all real zeros (estimate the irrational zeros to the nearest hundredth).
-$f ( x ) = x ^ { 4 } + 7 x ^ { 3 } - 7 x ^ { 2 } - 63 x - 18$
A)0.30, -6.70
B)3, -3, -0.30, -6.70
C)3, -3, 0.30, -6.70
D)9, -9, -0.30, -6.70

Find All Real Zeros (Estimate the Irrational Zeros to the Nearest