Solve the equation in the real number system.
-$x ^ { 4 } - 21 x ^ { 2 } - 100 = 0$
A) $\{ - 5,5 \}$
B) $\{ - 5 , - 2,2,5 \}$
C) $\{ - 10,10 \}$
D) $\{ - 2,2 \}$

Name: Solve the equation in the real number system. -$x ^ { 4 } - 21 x ^ { 2 } - 100 = 0$ A) $\{ - 5,5 \}$ B) $\{ - 5 , - 2,2,5 \}$ C) $\{ - 10,10 \}$ D) $\{ - 2,2 \}$
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The Answer of Solve the equation in the real number system.
-$x ^ { 4 } - 21 x ^ { 2 } - 100 = 0$
A) $\{ - 5,5 \}$
B) $\{ - 5 , - 2,2,5 \}$
C) $\{ - 10,10 \}$
D) $\{ - 2,2 \}$

Solve the Equation in the Real Number System x4−21x2−100=0x ^ { 4 } - 21 x ^ { 2 } - 100 = 0x4−21x2−100=0

Solve the Equation in the Real Number System $x ^ { 4 } - 21 x ^ { 2 } - 100 = 0$