$($a$)$ Solve the $D*E$

$2x\frac{dy}{dx}=y^2+1-2y$

b$)\frac{d^{2}y}{d{x}^2}+5\frac{dy}{dx}+6y=0$ given that $y=2$ when $x=0$ and $\frac{dy}{dx}=3$ when $x=08$

$2.$ Determine the regression line of the mass on age for the following data

$\backslash$table$[[$Age $($ys$)$ X$,1,5,20,27,36,42,],[$Mass $($ks$)$ Y$,5,14,40,62,70,63,[]]$