Question

2x²-2=0 resolva essa equação por baskara

Answer 1

a) 2

b) 0

c) -2

delta = b^2 -4.a.c

delta = 0 -4.2.(-2)

delta = 0 + 16

delta = 16

x = (-b +/- a raiz quadrada do delta)/2.a

x = (0 +/- 4)/ 4

x'= (0 + 4)/4

x' = 4/4

x'= 1.

x''= (0 -4)/4

x''= -4/4

x''= -1.