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# Solving a Polynomial by Factoring

SATSTM-NGZCXD

Find all zeros of the polynomial equation ${2x}^{4}-10{x}^{2}-72=0$

A

$x=3, 2i$

B

$x=3, -2i$

C

$x=-3, 3, -2i, 2i$

D

$x=-3, 3, -4i, 4i$

E

$x=-2, 2, -3i, 3i$