aflați delta .........

4x²-7x²+2=0
-3x²+2=0
-3x²= -2
[tex]x {}^{2} = \frac{2}{3} \\ \\ x = + - \frac{ \sqrt{6} }{3} \\ \\ x1 = \frac{ \sqrt{6} }{3} \\ \\ x2 = - \frac{ \sqrt{6} }{3} [/tex]