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1. |
Solve the following equation for the two roots of x:   x2 — 16 = 0 |
A. | x = 2i,   –2i |
B. | x = 4i,   –4i |
C. | x = 4,   –4 |
D. | x = 2,   –2 |
Answer» D. x = 2,¬†¬†¬†‚Äì2 | |