## anonymous 5 years ago do with the quadratic formula or equation. x^2 + 4x + 4 = 7????

That sets up nicely for factoring

2. anonymous

I would always try to factor first just because its faster personaly i only use the quadratic if I have to

3. anonymous

my teacher told me to put it into a=1 b=4 c= - 3 form or something and then put it into the equation (i know what the equation is im just stuck)

4. anonymous

ok then it sounds like you are going to have to do it with the quadratic.

I agree, I didn't see the 7

6. anonymous

subtract both sides by 7 then you get x^2=4x-3 a=1 b=4 c =-3 use qaud eq x=(-b+/-sqrt(b^2-4ac))/(2a)

7. anonymous

i keep coming up with -2 + or - radical 7

8. anonymous

is that wrong or right im confused

That looks like it would do it.

10. anonymous

did you apply the formula correctly? If you did, you should get the right answer.

11. anonymous

o okay thank u so much!

12. anonymous

should get (-4+sqrt28)/2 and (-4-sqrt28)/2

$-2\pm \sqrt{7}$

14. anonymous

i got what radar said. not eric8 ahh which one is right

I think EricC8 can be simplified for example the 28 is 7 x 4 and the sq root of 4 could be taken out of the radical

16. anonymous

o okay thank u so much!

then the denominator 2 could be divided into each term

18. anonymous

oh i see what you mean

By Jove I believe you've got it!

20. anonymous

haha thank u so much now ill be able to get an a+ on the test (:

Hope so, good luck on the test.

22. anonymous

thanks