SOLUTION: 64r^2-9=0 Please solve by factoring. Thank you

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: 64r^2-9=0 Please solve by factoring. Thank you      Log On


   

Question 627912: 64r^2-9=0 Please solve by factoring. Thank you
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

64r^2-9=0 

(8r - 3)(8r + 3) = 0  ,  r = ±  3/8

OR

64r^2-9=0 

64r^2 = 9

  r^2 = 9/64

    r = ±  3/8