Question Number 171824 by Mikenice last updated on 21/Jun/22
$${solve}\:{for}\:{a},{b},{c},{d} \\ $$$${a}+{b}=\mathrm{9} \\ $$$${ab}+{c}+{d}=\mathrm{29} \\ $$$${ad}+{bc}=\mathrm{3} \\ $$$${cd}=\mathrm{18} \\ $$$$ \\ $$$$ \\ $$$$ \\ $$
solve-for-a-b-c-d-a-b-9-ab-c-d-29-ad-bc-3-cd-18-