Question

resolva as equaçoes de 2 grau​

Answer 1

Olá!

Usarei Bháskara:

a) $x= \frac{5 +-\sqrt{25-24} }{2} \\\\x=\frac{5+-1}{2}\\\\x_{1}=3\\x_{2} = 2$

b) $x=\frac{8+-\sqrt{64 - 48} }{2}\\\\x=\frac{8+-4}{2}\\\\x_{1}=6\\x_{2} = 2$

c)$x= \frac{-2 +-\sqrt{4 + 32} }{2}\\\\x=\frac{-2+-6}{2}\\\\x_{1}=-4\\x_{2} = 2$

Espero que eu tenha te ajudado!