`(x-1)^2 - 24 = 40`
`=> (x-1)^2 = 64`
`=> (x-1)^2 = 8^2`
Xét `x-1 = 8`
`=> x = 9`
Xét `x-1 = -8`
`=> x = -7`
----------------------
`30 (2x - 3)^2 = 3000`
`=> (2x - 3)^2 = 100`
`=> (2x - 3)^2 = 10^2`
Xét `2x - 3 = 10`
`=> 2x = 13`
`=> x = 13/2`
Xét `2x - 3 = -10`
`=> 2x = -7`
`=> x = -7/2`
---------------------------
`(x-1)^4 = 1`
`= (x-1)^4 = 1^4`
Xét `x - 1 = 1`
`=> x = 2`
Xét `x - 1 = -1`
`=> x = 0`
--------------------------
`12 - 2(x+1)^2 = 4`
`=> 2(x+1)^2 = 8`
`=> (x+1)^2 = 4`
`=> (x+1)^2 = 2^2`
Xét `x + 1 = 2`
`=> x = 1`
Xét `x+1 = -2`
`=> x = -1`
---------------------------
`50 + 5(10-x)^4 = 55`
`=> 5(10-x)^4 = 5`
`=> (10-x)^4 = 1`
`=> (10-x)^4 = 1^4`
Xét `10-x = 1`
`=> x = 9`
Xét `10 - x = -1`
`=> x = 11`
(Chúc bạn học tốt)