Solve for real roots.
-$$2 x ^ { 1 / 2 } - 11 x ^ { 1 / 4 } - 21 = 0$$
A) $x = 2401$
B) $x = 7 , - \frac { 3 } { 2 }$
C) $x = 2401 , \frac { 81 } { 16 }$
D) $x = - 7 , - 3$

Question

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The Answer of Solve for real roots.
-$$2 x ^ { 1 / 2 } - 11 x ^ { 1 / 4 } - 21 = 0$$
A) $x = 2401$
B) $x = 7 , - \frac { 3 } { 2 }$
C) $x = 2401 , \frac { 81 } { 16 }$
D) $x = - 7 , - 3$

Solve for Real Roots 2x1/2−11x1/4−21=02 x ^ { 1 / 2 } - 11 x ^ { 1 / 4 } - 21 = 02x1/2−11x1/4−21=0

Solve for Real Roots $2 x ^ { 1 / 2 } - 11 x ^ { 1 / 4 } - 21 = 0$