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1. |
Solve 2x2 + x + 1 = 0. |
A. | \(\frac{-1±i\sqrt{7}}{4}\) |
B. | \(\frac{1±i\sqrt{7}}{4}\) |
C. | \(\frac{1±\sqrt{7}}{4}\) |
D. | \(\frac{-1±\sqrt{7}}{4}\) |
Answer» B. | |