Question

6 6/27+(x - 2/5) mũ 2 = 6 6/27

Answer 1

`6 6/27+(x-2/5)^2=6 6/27`

`(x-2/5)^2=6 6/27-6 6/27`

`(x-2/5)^2=0`

`x-2/5=0`

`x=2/5`

Answer 2

2/5