Question

Solve x2 + 4x + 8 = 0

Answer 1

So you need to use the quadratic formula for this one

x^2 + 4x + 8 = 0

a = 1
b = 4
c = 8

x = (-b +/- sqrt(b^2 - 4ac)) / 2a
x = (-4 +/- sqrt(16 - 4*1*8)) / 2

Answer 2

okay so what next?

Answer 3

You solve for x

Answer 4

So
x = (-4 +/- sqrt(16 - 4*1*8)) / 2
x=(-4+/- sqrt(-16))/2
x=(-4+/- (-4))/2

Answer 5

x=?
Do you know how to finish the last little part? You just need to divide by 2

Answer 6

So would it be a?

Answer 7

Yes a would be correct

Answer 8

Thank you!!

Answer 9

No problem! Happy to help!