Ответ:
x(1) = -7 x(2) =9
Объяснение: x^2 -2x-63 =0
x^2 +7x -9x -63 =0
x(x+7) - 9(x+7) =0
(x+7) * (x - 9)=0
x+7 =0
x -9 =0
x(1)= - 7 x(2)=9
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Ответ:
x(1) = -7 x(2) =9
Объяснение: x^2 -2x-63 =0
x^2 +7x -9x -63 =0
x(x+7) - 9(x+7) =0
(x+7) * (x - 9)=0
x+7 =0
x -9 =0
x(1)= - 7 x(2)=9