Question

X to 2nd power+6x=-3
Find a, b, and c
It will help you to put the equation in standard form.
Solve equation using quadratic formula.

Answer 1

x^2 +6x=-3
standard form
ax^2+bx+c

x^2+6x+3
so look at corresponding places
a=1
b=6
c=3

Answer 2

a=1, b=6, c=3. \[-6\pm \sqrt{6^{2}-4(1)(3)}/2(1)\]

Answer 3

There's your set-up.

Answer 4

Thanks for the answers, but I still don't know how to solve the equation.

Answer 5

Um... why not?

Answer 6

I get to -6 + sqrt of 12. and then I think sqrt of 12 is 3.464. then -6 + sqrt of 3.464. doesn't make sense

Answer 7

When I do the formula I get

-6 plus7minus sqrt(36-12)

That what you got?

Answer 8

"plus/minus" not plus7minus

Answer 9

right and it's all divided by 2. so that makes -3 (+ or -) sqrt of 12. right?

Answer 10

right and it's all divided by 2. so that makes -3 (+ or -) sqrt of 12. right?

Answer 11

\[-3\pm \sqrt{12}\]

Answer 12

Sorry, had to go out.

Nearly, you can't just divide the 24 by 2 because the 24 is under a square root sign and your 2 isn't.

You need to factor a 4 out of the square root (which becomes a 2 when you take it out, hope you can see this).

Then u can cancel your 2 with that two, leaving

-3 plus/minus sqrt 6.