## anonymous one year ago x^2+8x+? How can I make this a perfect square trinomial?

1. butterflydreamer

|dw:1439465336774:dw|

2. butterflydreamer

What does 8 divided by 2 equal to? :)

3. anonymous

4

4. butterflydreamer

yep and now what does 4 squared equal to?

5. butterflydreamer

Note: 4 squared = 4 times 4 = ?

6. anonymous

So in order to get the linear term, the equation is ($( \frac{ b }{ 2})^2$

7. anonymous

Wow thanks. :D

8. butterflydreamer

that's correeect :)!

9. butterflydreamer

So basically, if you want to create a perfect trinomial, you ADD half the middle term and then SQUARE it :) Hence, $(\frac{ b }{ 2 } )^2$