Question 203210
Is the expression {{{(3/5)*sqrt(x)+x^3}}} ???? If so, then...



{{{(3/5)*sqrt(x)+x^3}}} Start with the given expression.



{{{(3/5)*sqrt(16)+(16)^3}}} Plug in {{{x=16}}}



{{{(3/5)*4+(16)^3}}} Take the square root of 16 to get 4



{{{(3/5)*4+4096}}} Cube 16 to get 4096



{{{12/5+4096}}} Multiply



{{{12/5+4096(5/5)}}} Multiply the second term 4096 by {{{5/5}}} (to get the denominator equal to 5)



{{{12/5+20480/5}}} Multiply



{{{(12+20480)/5}}} Combine the fractions.



{{{20492/5}}} Add



So {{{(3/5)*sqrt(x)+x^3=20492/5}}} when {{{x=16}}}