Question

me ajudem ಥ╭╮ಥ( ⚈̥̥̥̥̥́⌢⚈̥̥̥̥̥̀)​( ⚈̥̥̥̥̥́⌢⚈̥̥̥̥̥̀)​

Answer 1

1=

$(a - b {)}^{2}$

$(a - b).(a - b)$

${a}^{2} - ab - ab + {b}^{2}$

${a}^{2} - {ab}^{2} + {b}^{2}$

${a}^{2} - {a}^{2} {b}^{2} + {b}^{2}$

$- {b}^{2} + {b}^{2}$

$0$

2=

${a}^{2} - ab + ab - {b}^{2}$

${a}^{2} - {b}^{2}$

espero ter ajudado