SOLUTION: can you answer this question for me please?? {{{64p^2=9}}} we are solving this by factoring....i really need to see how to work it out.! THANK YOU

Algebra ->  Equations -> SOLUTION: can you answer this question for me please?? {{{64p^2=9}}} we are solving this by factoring....i really need to see how to work it out.! THANK YOU      Log On


   



Question 72737: can you answer this question for me please?? 64p%5E2=9 we are solving this by factoring....i really need to see how to work it out.! THANK YOU
Found 2 solutions by stanbon, Earlsdon:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
64p^2=9
64p^2-9=0
Factor to get:
(8p-3)(8p+3)=0
One of these factors must be zero, so:
p=3/8 or p=-3/8
--------
Cheers,
Stan H.

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Solve for p:
64p%5E2+=+9 Divide both sides by 64.
p%5E2+=+9%2F64 Factor the numerator and the denominator.
p%5E2+=+%283%2A3%29%2F%288%2A8%29
p%5E2+=+3%5E2%2F8%5E2 Take the square root of both sides.
sqrt%28p%5E2%29+=+%28sqrt%283%5E2%29%29%2Fsqrt%288%5E2%29
p+=+3%2F8