Question

solve for x... x^2+6x+8=0
and
3x^2+6x=0

Answer 1

from 3x^2+6x=0 we get x = -3x^2 / 6 = -x^2 / 2
subtituting x = -x^2/2 to x^2+6x+8=0
x^2 + 6(-x^2/2) +8 = 0

Answer 2

Woah.. Im using Generic Rectangles to figure this out. Lol

Answer 3

But this will still work i think.

Answer 4

what is generic rectangles ? because im not native english

Answer 5

\[x^2+6 x+8=(x+2) (x+4)=0 \]

Answer 6

I'm assuming you want to find x for each separate equation.

For:

x^2+6x+8=0
(x+4)(x+2)=0
x=-4
and
x=-2

For:

3x^2+6x=0
3x(x+2)=0
3x=0
x=0
and x=-2 for (x+2)

Answer 7

oh that's a different equation,