Question

1- Resolva o delta 
a= 8  b= - 4  c= 1
Δ= -4² -4 (.8) (.1)

Answer 1

Δ= b² -4ac

Δ= (-4)²-4*8*1

Δ=16 -4*8*1

Δ=16 -32

Δ= -16