Answer:
Equation:
![3(x-6)^2=12](https://img.qammunity.org/2020/formulas/mathematics/middle-school/tv1a44357nah3egyh9e9y6qm8u6jd8ku9i.png)
Solutions:
![x=4\text{ or }x=8](https://img.qammunity.org/2020/formulas/mathematics/middle-school/hyre5jcmtez9k9p59rf7arygfzgh6wcsjv.png)
Explanation:
Unknown variable
![= x](https://img.qammunity.org/2020/formulas/mathematics/middle-school/uhe1jzq44qby85jdhbyrjf9gr5fqk1qc40.png)
Difference of x and 6
![= x - 6](https://img.qammunity.org/2020/formulas/mathematics/middle-school/392xhkbgkun16jfrlbd54sjrmwcxmjzp8g.png)
Square of the difference of x and 6
![=(x-6)^2](https://img.qammunity.org/2020/formulas/mathematics/high-school/ugjjkysmzhnmxegay0hwj74a79nov6xlnl.png)
Three times the square of the difference of x and 6
![=3(x-6)^2](https://img.qammunity.org/2020/formulas/mathematics/middle-school/y7y97aindcpyrg9c0xb3mcvphezf47wq1m.png)
Three times the square of the difference of x and 6 is 12, then
![3(x-6)^2=12](https://img.qammunity.org/2020/formulas/mathematics/middle-school/tv1a44357nah3egyh9e9y6qm8u6jd8ku9i.png)
Divide this equation by 3:
![(x-6)^2 =4](https://img.qammunity.org/2020/formulas/mathematics/middle-school/f1b4jhp7s47kxqdk3pbukvont7mue2zjks.png)
Now
![x-6=2\text{ or }x-6=-2\\ \\x=2+6\text{ or }x=-2+6\\ \\x=8\text{ or }x=4](https://img.qammunity.org/2020/formulas/mathematics/middle-school/g2eooxvyaufx2ubsrxlerq6fzqqyr7pnbs.png)