RESOLVENDO COM A FÓRMULA DE BHÁSKARA.

Vamos determinar as raízes da equações do 2° Grau sendo U= IR.

A)  x^{2} -\frac{4}{5}x = \frac{1}{5}

B) x+ _x²_ +4_ =2
5

C)_x²_ ₋ _x _+12_= 2x
2 3

D) _x(x+1)_ ₋ _x ₋ 5_ = _5( 2x ₋ 1)_
4 12 6


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