Question

what is the quadratic formula?

Answer 1

of this form ax^2+bx+c=0

Answer 2

\[\Huge x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}\]

Answer 3

its sooo beautiful^

Answer 4

x=[-b + - sqrt(b^2-4ac)]/2a

Answer 5

and the number under the square root:
b^2-4ac

is called the discriminant.

When it is <0 --> there are no real solutions
when it is = 0 --> there is only one real solutoin
when it it >0 --> there are two real solutions
when it is a perfect square --> the solutions will be rational numbers

Answer 6

\[\Huge \begin{array}l\color{red}{\text{T}}\color{orange}{\text{h}}\color{#9c9a2e}{\text{a}}\color{green}{\text{n}}\color{blue}{\text{k}}\color{purple}{\text{s}}\color{purple}{\text{ }}\color{red}{\text{S}}\color{orange}{\text{m}}\color{#9c9a2e}{\text{a}}\color{green}{\text{r}}\color{blue}{\text{t}}\color{purple}{\text{a}}\color{purple}{\text{s}}\color{red}{\text{s}}\color{orange}{\text{.}}\color{#9c9a2e}{\text{ }}\color{green}{\text{^}}\color{blue}{\text{_}}\color{purple}{\text{^}}\color{purple}{\text{}}\end{array} \]

Answer 7

FOIL !