Question

DETERMINE AS RAIZES DAS EQUAÇÔES UTILIZANDO A FORMULA RESOLUTIVA

 

a) 2x² + x -1= 0

b) 2x² + 2x -24= 0

c) 3x² - 4x -2= -3

d)1/4x² + 5x/4 - 6= 0

e) x² + 5x -2= -8

Answer 1

a) x¹ = 1/2  ;  x² = -1
b) x¹ = 3    ;   x² = -4
c) x¹ =  2+raiz quadrada de -8 / 6   ;  x² = 2 - raiz quadrada de -8 / 6
d) x¹ = 3  ; x² = -8
e) x¹ = -2  ; x² = -3