Question 1180338

{{{q(x)=x^2+9}}}

{{{r(x)=sqrt(x)+8}}}-> assuming you have this

Find the following.

({{{r}}} o {{{q}}})({{{8}}})=

({{{q }}}o{{{ r}}} )({{{8}}})=


({{{r}}} o {{{q}}})({{{x}}})={{{r(q(x))=r(x^2+9)=sqrt(x^2+9)+8}}}


({{{r}}} o {{{q}}})({{{8}}})={{{sqrt(8^2+9)+8}}}

({{{r}}} o {{{q}}})({{{8}}})={{{sqrt(73)+8}}}



({{{q }}}o{{{ r}}} )({{{x}}})={{{q(r(x))=q(sqrt(x)+8)=(sqrt(x)+8)^2+9}}}

({{{q }}}o{{{ r}}} )({{{8}}})={{{(sqrt(8)+8)^2+9}}}

({{{q }}}o{{{ r}}} )({{{8}}})={{{72 + 32sqrt(2)+9}}}

({{{q }}}o{{{ r}}} )({{{8}}})={{{81+32sqrt(2)}}}