Question

as raízes da equação -2x²+4x+4=0

Answer 1

-2x²+4x+4=0 ===> :(-2)

x² -2x -2 = 0

∆=4 +8= 12 => √∆= 2√3

x' = 2+2√3/2= 1+√3 ✓

x"= 2-2√3/2 = 1-√3 ✓

Answer 2

Resposta:

2x+4=0

X=4/2

X=2 Pronto