Question

determine as raizes da seguintes equacoes
a)x^2=9
b)x^2=2
c)7x^2=28
d)x^2=4x
e)3x^2=6x
f)2x^2=5x

Answer 1

Olá

Bom,

_____________

•A) x² = 9

x = √9

x = 3

_

•B) x² = 2

x = √2

x ≈ 1,41421356237309

_

•C) 7x² = 28

x² = 4

x = √4

x = 2

_

•D) x² = 4x

x(x-4)

x'=0

x"= 4

_

•E) 3x² = 6x

x(3x-6x)

x'=0

x"=2

_

•F) 2x² = 5x

x(2x-5)

x'=0

x"=5/2

__________

Qualquer dúvida me avise

Ass: MarcosPCV