Question

(x-2)²=144

2×(x-1)²=288

Answer 1

`(x-2)^2 = 144`

`=> (x-2)^2 = 12^2`

`=> x - 2 = -12` hoặc `x - 2 = 12`

`=> x = -10` hoặc `x = 14`

Vậy ....

`2 . (x-1)^2 = 288`

`=> (x-1)^2 = 288 : 2`

`=> (x-1)^2 = 144`

`=> x - 1 = -12` hoặc `x - 1 = 12`

`=> x = -11` hoặc `x = 13`

Vậy...

Answer 2

\(a;\left(x-2\right)^2=144=\left(-12\right)^2=12^2\\ x-2=12=>x=14\\ x-2=-12=>x=-10\\ b;2\cdot\left(x-1\right)^2=288\\ =>\left(x-1\right)^2=144=12^2=\left(-12\right)^2\\ x-1=12=>x=13\\ x-1=-12=>x=-11\)