Question

Resolva as equações:

a) 2k² - 8 = 0

b) 5x² = 0

c) X² - 5x = 0

Answer 1

2k^2=8

k=raiz de 4 

k=+2

 

5x^2=0

x=0

 

x^2-5x=0

x(x-5)=o

x=+ 5

x=0