Find the roots of the following quadratic equations, if they exist, by the method of completing ... VIDEO
Find the roots of the following quadratic equations, if they exist, by the method of completing the square:
(i) \( 2 x^{2}-7 x+3=0 \)
(ii) \( 2 x^{2}+x-4=0 \)
(iii) \( 4 x^{2}+4 \sqrt{3} x+3=0 \)
(iv) \( 2 x^{2}+x+4=0 \)
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