SOLUTION: Solve the equation for x.(2x � 1)2 � 9 = 0

Question 775330: Solve the equation for x.(2x � 1)2 � 9 = 0
Answer by sofiyac(983) (Show Source): You can put this solution on YOUR website!
you need to make sure you copy the problem correctly
(2x � 1)^2 � 9 = 0 first add 9 to each side of the equal sign
(2x � 1)^2 = 9 next take square root of each side, you get two cases due to the square root since -3*-3=9 AND 3*3=9
case 1:
2x-1=3 add 1 to each side of the equal sign
2x=4 divide each side by 2
x=2
case 2:
2x-1=-3 add 1 to each side of the equal sign
2x=-2 divide each side by 2
x=-1
so the solutions are x=2 or x=-1
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