Question

3× elevado a 2-7×+2=0 resolver

Answer 1

Resposta:

${3x}^{2} - 7x + 2 = 0 \\ a = 3 \\ b = - 7 \\ c = 2 \\ x = \frac{ - ( - 7) \frac{ + }{ - } \sqrt{ ({ - 7}^{2} )} - 4(3)(2)}{2(3)} \\ x = \frac{7 \frac{ + }{ - } \sqrt{49 - 24} }{6} \\ x = \frac{7 \frac{ + }{ - } \sqrt{25} }{6} \\ {x} = \frac{7 \frac{ + }{ - } 5}{6} \\ {x}^{1} = \frac{12}{6} = 2 \\ {x }^{2} = \frac{2}{6} = \frac{1}{3}$