Question

Resolva a equação
Z(z+6) =(⅖)

Answer 1

Resposta:

Explicação passo-a-passo:

Z(z+6) =(⅖)

Z^2 + 6z= 2/5

5.(z^2 + 6z) = 2

5Z^2 + 30z = 2

5z^2 + 30z- 2 = 0

a = 5; b= 30; c = - 2

/\= b^2 - 4ac

/\ = 30^2 - 4.5.(-2)

/\= 900 + 40

/\= 940

940:2

470:2

235:5

47:47

---------

1

= 2^2 . 5 . 47

= \/4.\/235

= 2\/235

x = [- b +/- \/ /\]/2a

x = [-30 +/- 2\/235]/2.5

x = [- 30 +/- 2\/235]/10

x = -30/10 +/- 2\/235/10

x = - 3 +/- \/235/5

R.:

x' = - 3 + \/235/5

x' = - 3 + \/235/5x" = - 3 - \/235/5