Giup voi lam on lam on

`1.` 

`x^2=4`

`=> x^2=2^2`

`x=2`

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`2.`

`x^2=9`

`=> x^2=3^2`

`x=3`

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`3.`

`x^2=16`

`=> x^2=4^2`

`x=4`

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`4.` 

`x^2=100`

`=> x^2=10^2`

`x=10`

==============

`5.`

`x^4=16`

`=> x^4=2^4`

`x=2`

---------------------

`6.` 

`(x+2)^2=36`

`(x+2)^2=6^2`

`x+2=6`

`x=6-2`

`x=4`

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`7.`

`(x-3)^3=64`

`(x-3)^3=4^3`

`x-3=4`

`x=4+3`

`x=7`

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`8.`

`15*24-14,5*(145:5-7)`

`=15*24-14,5*22`

`=  360-319`

`= 41`

==============

`9.` 

`25x^2=25`

`x^2=25:25`

`x^2=1`

`=> x^2=1^2`

`x=1`

-------------------------

`10.`

`(x-1)^4=16`

`(x-1)^4=2^4`

`=> x-1=2`

`x=2+1`

`x=3`

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