YanaSidlinskiy one year ago Help? I'm stuck. Applications of Quadratic Applications.

1. YanaSidlinskiy

$S=-16t^2+11t$ $(-1)0= (-1)(-16t^2+112 t)$ $0=16t^2-112t$ That is what I got. I've tried solving further but I'm confused...

2. hihi67

what r u tryin to figure out

3. YanaSidlinskiy

Well, now I'm supposed to be factoring the last equation...

4. anonymous

try completing the square

5. Astrophysics

You could use the quadratic equation if you like, c = 0, or complete the square.

6. hihi67

itll be in the form (a-b)(a+b)

7. YanaSidlinskiy

Yes, I do know that I just do not know how to go from what I've put up last.

8. hihi67

just take any random number, plug it in and see what happens i guess lol

9. Astrophysics

You could just do (11-16t)t=0 that gives your factors

10. Astrophysics

factoring out a t

11. YanaSidlinskiy

Nevermind I got it haha. Thanks guys!

12. Astrophysics

Ok :)

13. anonymous

$16t^2-112t+(\frac{ 112 }{ 2 })^2= (\frac{ 112 }{ 2 })^2$

14. anonymous

lol ok

15. Astrophysics

S = -16t^2+11t is different from 16t^2-112t, I'm assuming there was just a mistake there, but you can do the same as above for it in any case, I guess you realized that :P