## Sabrena Group Title I need someones help in solving a problem and showing the work so that I can solve the next few one year ago one year ago

1. Sabrena Group Title

2. richyw Group Title

$16n^2-4=0$?

3. richyw Group Title

$16n^2=4$$n^2=\frac{4}{16}=\frac{1}{4}$$n=\sqrt{\frac{1}{4}}=\frac{1}{\sqrt{4}}=\pm\frac{1}{2}$

4. Sabrena Group Title

16n^2-4=0 yes that is correct

5. Sabrena Group Title

Is that a +1/-2 at the end of the equation

6. richyw Group Title

nope that means it has two solutions $$1/2$$ and $$-1/2$$

7. Sabrena Group Title

8. richyw Group Title

well the first thing you want to do is isolate $$n^2$$ so you first have add 4 to both sides, then divide both sides by 16. Now you have $$n^2$$ on its own, so you have to take the square root of both sides to do that.

9. richyw Group Title

also I used $\sqrt\frac{a}{b}=\frac{\sqrt{a}}{\sqrt{b}}$ to take the 1 out and $$\sqrt 4=\pm2$$ that is = -2 and =2

10. Sabrena Group Title

Thank You, I wasnt sure about the 1. You have been very helpful. Thanks Again