найдите корень уравнения .25баллов!!!1) x+5/x-7=02)(x-3)(-x-2)=0. Created by the76. algebra-ru

x-7=02)(x-3)(-x-2)=0...

the76 @the76

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найдите корень уравнения .25баллов!!!
1) x+5/x-7=0

2)(x-3)(-x-2)=0

table123

Verified answer

1) x+5/x-7=0, x+5=0, x=-5

2)(x-3)(-x-2)=0, x-3=0 или -x-2=0, x=3 или x=-2

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Настасья3581954 2)
$- {x}^{2} - 2x + 3x + 6 = 0 \\ - {x}^{2} + x + 6 = 0 \\ 1 - 4 \times 6 \times ( - 1) = 1 + 24 = 25 \\ x1 = - 1 - 5 \div - 2 = 3 \\ x2 = - 1 + 5 \div - 2 = - 2 \\$

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