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Elena1975kz
@Elena1975kz
July 2022
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x в квадрате +9x-22=0
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Roges
D=b(квадрат)-4ac=9(в квадрате)-4*1*(-22)=81+88=169=13(Таблица квадратов)
x1;2= -b+-D(D в корне)/2a (Дробью) = -9 +- 13/2(Дробь) = 4/2=2
=22/2=10
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x1;2= -b+-D(D в корне)/2a (Дробью) = -9 +- 13/2(Дробь) = 4/2=2
=22/2=10