<PRE><B>Question 20720</B>
Trying to solve this equation. Have four choices on worksheet but cant get the right answer. the problem is (7x-7)squared=36.  The choices are 13/7,0
29/7    -13/7,-1/7        13/7,1/7   thanks

(7x-7)^2 = 36
taking squareroot on both sides
7x-7=6   or  7x-7=-6
7x=6+7   or  7x=-6+7
7x=13   or  7x=1

x=13/7 or x=1/7


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