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Find the exact solution of the given initial value problem. Then apply Euler's method twice to approximate $($to four decimal places$)$ this solution on the given interval, first with step size $h=0\mathrm{.}01,$ then with step size $h=0\mathrm{.}005.$ Make a table showing the approximate values and the actual value, together with the percentage error in the more accurate approximation, for $x$ an integral multiple of $0\mathrm{.}2.$

$x{y}^{\text{'}}=12x-3y,y(3)=10,3x4$

$($Do not round until the final answer. Then round to four decimal places as needed.$)$

$\backslash$table$[[x,\backslash$table$[[$Euler Approximation,$],[h=0\mathrm{.}01$