Tham khảo
`1) 3x+2=2(x-7)-(-10)`
`→3x+2=2x-14+10`
`→3x+2=2x-4`
`→3x=2x-4-2`
`→3x=2x-6`
`→2x-3x=6`
`→-x=6`
`→x=-6`
`2) (x-3)^2=36`
`→(x-3)^2=(±6)^2`
`→(x-3)=(±6)`
`→`\(\left[ \begin{array}{l}x-3=6\\x-3=-6\end{array} \right.\)
`→`\(\left[ \begin{array}{l}x=6+3\\x=-6+3\end{array} \right.\)
`→`\(\left[ \begin{array}{l}x=9\\x=-3\end{array} \right.\)
Vậy `x=9` hoặc `x=-3`