# 2x2 +

Given 2x2 + x + 1 = 0

Recall that the roots of quadratic equation ax2 + bx + c = 0, where a ≠ 0, are given by Here, a = 2, b = 1 and c = 1    We have i2 = –1

By substituting –1 = i2 in the above equation, we get    Thus, the roots of the given equation are .

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