Question

Solve : x2 +8x + 4 = 0

Answer 1

a = 1

b = 8

c = 4

d = b^2 - 4ac

d => 64 -16

d => 48

alpha = -b -√d/2a

=> -8 - √48

________

2

=> -8 -4√3/2

=> -4-2√3

beta = -4+2√3