Given 
Recall that the roots of quadratic equation ax2 + bx + c = 0, where a ≠ 0, are given by
Here, a = 3, b = –4 and 
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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Given
Recall that the roots of quadratic equation ax2 + bx + c = 0, where a ≠ 0, are given by
Here, a = 3, b = –4 and
We have i2 = –1
By substituting –1 = i2 in the above equation, we get
Thus, the roots of the given equation are.