Respuesta :

[tex] \sqrt{8+b} = \sqrt{8} * \sqrt{b} = \sqrt{4*2} * \sqrt{b} =2 \sqrt{2}* \sqrt{b} =2 \sqrt{2b} [/tex]
the answer is the square root of  (√ 8 + b),  because you are adding two terms that can not be combined because you do not know the value of be, so that is the simplest form √8 +b