Question

-b formula problem.. [Basic Error?]

Answer 1

= Equation.

Answer 2

Through solving by minus b, I get x = -1 or x = -3.

But how do I write this in terms of (2s ) and (s ) ?

Answer 3

Hi Phi :)

Answer 4

Let me use x instead of s (force of habit)
you found the solutions to
\[ 2x^2 +8x + 6 = 0 \]
notice that you can divide both sides of the equation by 2 and get
\[ x^2 + 4x + 3=0 \]
the solutions are x= -1 and x= -3
x= -1 can be written (add +1 to both sides) as
x+1 = 0
also, x= -3 --> x+3 = 0
if we multiply these two equations we get
(x+1)(x+3) = 0

expand to get
x^2 + 4x + 3 = 0

if you want the original equation multiply both sides by 2:
2x^2 + 8x + 6 = 0

this can be factored into
2(x+1)(x+3) = 0

Answer 5

I just did a laplace question, and that quadratic above was in the form: