Answer
Square root property:
If \(y^2=b\) then; \(y = \sqrt{b}\)
Given the equation:
\((x-1)^2=9\)
Using square root property;
Then;
\(x-1 = \sqrt{9}\)
Simplify:
\(x-1 = 3\)
Add 1 to both sides we have;
\(x = 4\)
Therefore, the strategy is the most appropriate strategy to solve \((x-1)^2=9\) is square root property and the value of x is 4
