Question 1187765
{{{y=9x(ln(x)+ln(4))-4x+pi}}}

{{{y=9x(ln(4x))-4x+pi}}}


{{{(d/dx)(9x(ln(4x))-4x+pi)}}}

={{{(d/dx)(9x(ln(4x)))-(d/dx)(4x)+(d/dx)(pi)}}}

={{{9(ln(4x)+1)-4+0}}}

={{{9ln(4x)+9-4}}}

={{{9ln(4x)+5}}}

=>
{{{y}}}'{{{(x) = 9log(4x) + 5  }}}