## ladiesman217 Group Title medals & fans rewarded one year ago one year ago

$x ^{2}-4x=5$

2. ajprincess

$$x^2-4x=5$$ $$x^2-4x-5=$$ use quadratic formula to find x.

3. Compassionate

Korra stahp. Itachi is at work.

4. ajprincess

who is itachi @compassionate?

5. Compassionate

$\begin{array}l\color{red}{\text{D}}\color{orange}{\text{O}}\color{#E6E600}{\text{ }}\color{green}{\text{Y}}\color{blue}{\text{O}}\color{purple}{\text{U}}\color{purple}{\text{ }}\color{red}{\text{E}}\color{orange}{\text{V}}\color{#E6E600}{\text{E}}\color{green}{\text{N}}\color{blue}{\text{ }}\color{purple}{\text{A}}\color{purple}{\text{N}}\color{red}{\text{I}}\color{orange}{\text{M}}\color{#E6E600}{\text{E}}\color{green}{\text{?}}\color{blue}{\text{}}\end{array}$

6. austinL

$x=\frac{-b \pm \sqrt{b^2-4 a c}}{2a}$

7. ajprincess

the values of a, b nd c can be found by comparing the equation $$x^2-4x-5=0$$ with the general equation $$ax^2+bx+c=0$$. Does that help? @ladiesman217

ok thnx

so x=-1 & x=5

10. ajprincess

plz check the signs:)

aren't those the correct signs

12. ajprincess

nope:(

13. ajprincess

what are the values of a, b and c?

$-1^{2}-4*(-1)=5$