Solve the equation (x-1)^{2}=9

Solve the equation (x-1)^{2}=9

Question
Equations and inequalities
asked 2021-04-18
Solve the equation \(\displaystyle{\left({x}-{1}\right)}^{{{2}}}={9}\)

Answers (1)

2021-04-20

Take the square root of both sides of he equation:
\(x-1=\pm3\)
Add 1 to both sides of the equation:
\(\displaystyle{x}={1}+\pm{3}\) or -2

 

0

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