Question

5.2²+(x+3)=5²

Answer 1

20 + x +3 = 25

x +3= 25 - 20

x +3= 5

x= 5-3

x= 2

Vậy x= 2

 

Answer 2

`5.2^2+(x+3)=5^2`

`=>5.4+(x+3)=25`

`=>20 +(x+3)=25`

`=>x+3=25-20`

`=>x+3=5`

`=>x=5-3`

`=>x=2`

Answer 3

20 + x +3 = 25

x +3= 25 - 20

x +3= 5

x= 5-3

x= 2

Vậy x= 2