Question

\(\sqrt{12^2}.13\)  + \(\sqrt{7^2.3}\)  + \(\sqrt{11^2}.13\)

Answer 1

\(\sqrt{12^2}\cdot13+\sqrt{7^2\cdot3}+\sqrt{11^2}\cdot13\)

\(=12\cdot13+7\sqrt{3}+11\cdot13\)

\(=13\cdot23+7\sqrt{3}=299+7\sqrt{3}\)

Answer 2

`sqrt{12^2} . 13 + sqrt{7^2 . 3} + sqrt{11^2} . 13`

`= 12 . 13 + 7sqrt{3} + 11 . 13`

`= 13 . (12 + 11) + 7sqrt{3}`

`= 13 . 23 + 7sqrt{3}`

`= 229 + 7sqrt{3}`