In matlab, i have y $=(5*$x$*$exp$(4*$x$))/7-(5*$exp$(4*$x$))/49+$ C$1*$exp$(-3*$x$)+$ C$2*$exp$(4*$x$)$

How to use matlab coding to sub in y$(0)=1,$ and y$\text{'}(0)=1$ to solve simultanaously for C$1$ and C$2,$ and display the final y with the value of C$1$ and C$2?$