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24/3,2*2 =
= 24/6,4 =
= 3/0,8 =
ОДЗ x-4>0 и x+7>0
x>4 x>-7
ОДЗ x>4
(x-4)(x+7)=12
x²+3x-28-12=0
x²+3x-40=0
D=9+160=169
не удовлетворяет ОДЗ
ответ х=5
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Писать сразу после самого примера)