Question

5.2²+(x+3)=5² cho em xin lời giải ạ

Answer 1

`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 2

\(5.2^2+\left(x+3\right)=5^2\)

\(\Rightarrow5.4+x+3=25\)

\(\Rightarrow20+x+3=25\)

\(\Rightarrow\left(20+3\right)+x=25\)

\(\Rightarrow23+x=25\)

\(\Rightarrow x=2\)