Question

Simplyfy
(5-xy) (3+xy)

Answer 1

$\huge\boxed{\texttt{\fcolorbox{Red}{aqua}{Hey Mate!!}}}$
$(5 - xy)(3 + xy) \\ = 5(3 + xy) - xy(3 + xy) \\ = 15 + 5xy - 3xy - x {}^{2} y {}^{2} \\ = 15 + 2xy - x {}^{2} y {}^{2}$

$\large{\red{\boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\underline{\underline{\underline{Hope\:it\:helps\: you}}}}}}}}}}}}}}}$