x^2/7 -x = 1/7 use quadratic formula? help me understand this, please? :) Thanks

Question

x^2/7  -x   =   1/7      use quadratic formula? help me understand this, please? :)  Thanks

nottim · Answer

You know the quadratic formula right?

anonymous · Answer

yup :)  its just the near to last part that screws me up :(

anonymous · Answer

and the dumb fractions which i detest :/

nottim · Answer

If you could,
       If you would,
Please show an ywork you've done?
My little son?

nottim · Answer

(Nothing rhymed with star; I went with what I got)

anonymous · Answer

o.O

anonymous · Answer

err i dont know what to do with the x^2 :(

nottim · Answer

Wait...That's x to the exponent 2?

anonymous · Answer

yes ^^

anonymous · Answer

You can rewrite it like this $$\frac{1}{7}x^2 - x - \frac{1}{7}$$ and then use quadratic formula

nottim · Answer

I think it just becomes a=1 in the quadratic formula.

anonymous · Answer

Then you can factor out a 1/7 leaving you with this$$(x^2 - 7x - 1)$$

nottim · Answer

Can't disagree with that beautiful trinomial.

nottim · Answer

Can I? I dunno.

anonymous · Answer

$$x^{2}/7-x=1/7$$

anonymous · Answer

^^ yes but i moved the 1/7 over to the other side and factored out a 1/7 leaving you with what i wrote above.

anonymous · Answer

Use the Quadratic Formula to find the solutions of $$x^2 - 7x - 1 = 0$$

anonymous · Answer

You should get $$\frac{7 \pm 3 \sqrt{5}}{2}$$

anonymous · Answer

So the final answer will look like the above?

anonymous · Answer

Yes

anonymous · Answer

ok thanks :)