Question

what is the quadratic formula how do you use it to solve x2 + 6x = –3.

Answer 1

is that x^2+6x=-3?

Answer 2

\[ax^2+bx+c=0\] is the general form you need in order to use the quadratic formula

Answer 3

yes it is

Answer 4

How do you use the quadratic formula

Answer 5

once you have it in that form, you use:\[x={-b \pm \sqrt{b^2-4ac} \over {2a}}\]

Answer 6

That is the quadratic formula. Just substitute the values for a, b, and c

Answer 7

Just remember that the function MUST equal 0

Answer 8

Is it -6 -6 over /2

Answer 9

so you have to move the -3 to the other side so that you have x^2 +6x+3=0

Answer 10

You have two answers, the \[\pm\] so -6\[\pm\] sqrt(36-4(1)(3)) all divided by 2

Answer 11

-3+- 6

Answer 12

\[x={{-6\pm \sqrt{36-4(1)(3)}}\over {2(1)}}\]

Answer 13

Do you know how to simplify that?