Question

пожалуйста решите срочно x×x-24=5×8 279+y×y=35×9 (c-c)×5=0​

Answer 1

$x times x - 24 = 40 \ x {}^{2} = 64 \ x = pm8$

_____

$279 + y times y = 35 times 9 \ 279 + y {}^{2} = 315 \ y {}^{2} = 36 \ y = pm6$

______

$(c - c) times 5 = 0 \ 0 times 5 = 0 \ 0 = 0$

х принадлежит R