Answers

2014-06-21T12:23:33+08:00
1.        2r² - 11r + 5 = 0
         (2r + 1)(r + 5) = 0

2.            81 - 4x² = 0
    (9 - 2x)(9 + 2x) = 0

3.    4s² -12s + 9 = 0
    (2s - 3)(2s - 3) = 0
0
:)
:)
can u comment the solution for # 1,2 & 3 .. plzxx ..
#1....2r + 1 = 0.........2r = -1.......r = 1/2........................................................r + 5 = 0 .....r = -5
thank uuuuu :* :)